{"id":12553,"date":"2026-05-18T12:55:02","date_gmt":"2026-05-18T12:55:02","guid":{"rendered":"https:\/\/www.vedprep.com\/exams\/?p=12553"},"modified":"2026-05-18T13:02:03","modified_gmt":"2026-05-18T13:02:03","slug":"electromeric-effect-for-iit-jam","status":"publish","type":"post","link":"https:\/\/www.vedprep.com\/exams\/iit-jam\/electromeric-effect-for-iit-jam\/","title":{"rendered":"Electromeric effect: Master Guide For IIT JAM 2027"},"content":{"rendered":"<p>The <strong>electromeric effect<\/strong> is a temporary phenomenon involving the complete transfer of \u03c0 electrons from a double bond to one of the bonded atoms under the influence of an attacking reagent, leading to the development of partial charges.<\/p>\n<h2><strong>Electromeric effect For IIT JAM Syllabus and Key Textbooks<\/strong><\/h2>\n<p data-path-to-node=\"3\">When you dive into the Organic Chemistry unit of <a href=\"https:\/\/jam2026.iitb.ac.in\/files\/syllabus_CY.pdf\" rel=\"nofollow noopener\" target=\"_blank\"><strong>IIT JAM syllabus<\/strong><\/a>, electronic effects are your bread and butter. You have probably spent hours on inductive effects and hyperconjugation, but the <strong>electromeric<\/strong> <strong>effect<\/strong> is a unique beast that you cannot afford to skip.<\/p>\n<p data-path-to-node=\"4\">Think of it as a temporary shift in a molecule&#8217;s personality when a guest arrives. While some textbooks might make this sound incredibly dense, it is basically about how <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"170\">\u03c0<\/span>\u00a0electrons shift around during a reaction.<\/p>\n<p data-path-to-node=\"5\">For an in-depth study, you can refer to these classic, trusty textbooks:<\/p>\n<ul data-path-to-node=\"6\">\n<li>\n<p data-path-to-node=\"6,0,0\"><i data-path-to-node=\"6,0,0\" data-index-in-node=\"0\">Organic Chemistry<\/i> by Morrison and Boyd<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,1,0\"><i data-path-to-node=\"6,1,0\" data-index-in-node=\"0\">Organic Chemistry<\/i> by Solomons and Fryhle<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"7\">These books are staples for GATE and IIT JAM prep. But if you ever find yourself staring at their pages at 2 AM feeling completely overwhelmed, don&#8217;t worry. At <a href=\"https:\/\/www.vedprep.com\/online-courses\"><b data-path-to-node=\"7\" data-index-in-node=\"160\">VedPrep<\/b><\/a>, we love breaking down these heavy academic topics into bite-sized, understandable concepts so you don&#8217;t have to decode the textbook language alone.<\/p>\n<h2><strong>Electromeric effect For IIT JAM<\/strong><\/h2>\n<p data-path-to-node=\"10\">Let&#8217;s clear up the definition first. The <strong>electromeric effec<\/strong>t is a temporary phenomenon where an attacking reagent forces a complete transfer of <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"144\">\u03c0<\/span>\u00a0electrons from a double or triple bond to one of the bonded atoms.<\/p>\n<p data-path-to-node=\"11\">To make sense of this, picture a fictional scenario: imagine a quiet, stable crowded subway car (our alkene double bond). The passengers (<span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"138\">\u03c0<\/span>\u00a0electrons) are chilling comfortably between two doors (the carbon atoms). Suddenly, an aggressive ticket checker (the attacking reagent) steps into the car. To avoid the checker, all the passengers instantly rush to one side of the car. The side they pile into gets incredibly crowded (negative charge), while the side they left behind is completely empty (positive charge). As soon as the ticket checker leaves, everyone spreads back out.<\/p>\n<p data-path-to-node=\"12\">That is exactly how this effect works in a molecule. The electron shift only happens because an external reagent forces the issue. One end of the system becomes electron-rich, and the other becomes electron-poor.<\/p>\n<p data-path-to-node=\"13\"><strong>Types of Electromeric Effects<\/strong><\/p>\n<p data-path-to-node=\"14\">We split this phenomenon into two types: the <b data-path-to-node=\"14\" data-index-in-node=\"45\">+E effect<\/b> and the <b data-path-to-node=\"14\" data-index-in-node=\"63\">-E effect<\/b>.<\/p>\n<ul data-path-to-node=\"15\">\n<li>\n<p data-path-to-node=\"15,0,0\"><b data-path-to-node=\"15,0,0\" data-index-in-node=\"0\">The +E effect<\/b> happens when the <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"31\">\u03c0<\/span>\u00a0electrons transfer to the atom where the attacking reagent actually attaches.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"15,1,0\"><b data-path-to-node=\"15,1,0\" data-index-in-node=\"0\">The -E effect<\/b> is the exact opposite. Here, the <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"47\">\u03c0<\/span>\u00a0electrons move away from the atom that the reagent is attacking, landing on an adjacent atom instead.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"16\">Mastering this distinction is a massive help for your IIT JAM prep, especially when you need to predict how a molecule will behave in the middle of a complex reaction mechanism.<\/p>\n<h2><strong>Types of Electromeric effect: +E and -E Effect<\/strong><\/h2>\n<p data-path-to-node=\"19\">Let&#8217;s look a bit closer at how these electron pairs move. A lot of students get confused and mix this up with resonance, but remember: resonance is permanent, while the <strong>electromeric effect<\/strong> is a temporary response to an outsider.<\/p>\n<p data-path-to-node=\"20\"><strong>The +E Effect<\/strong><\/p>\n<p data-path-to-node=\"21\">When an acid attacks an alkene, the <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"36\">\u03c0<\/span>\u00a0electrons shift toward one carbon, and that is exactly where the proton (<span class=\"math-inline\" data-math=\"H^+\" data-index-in-node=\"113\">H<sup>+<\/sup><\/span>) binds. Because the electron pair moves <i data-path-to-node=\"21\" data-index-in-node=\"157\">toward<\/i> the site of attack, we call it +E. You will usually see this when electron-donating groups like <span class=\"math-inline\" data-math=\"-OH\" data-index-in-node=\"260\">-OH<\/span>, <span class=\"math-inline\" data-math=\"-NH_2\" data-index-in-node=\"265\">-NH<sub>2<\/sub><\/span>, or <span class=\"math-inline\" data-math=\"-OR\" data-index-in-node=\"275\">-OR<\/span>\u00a0are involved nearby to help stabilize the system.<\/p>\n<p data-path-to-node=\"22\"><strong>The -E Effect<\/strong><\/p>\n<p data-path-to-node=\"23\">Now, imagine a nucleophile like cyanide (<span class=\"math-inline\" data-math=\"CN^-\" data-index-in-node=\"41\">CN<sup>&#8211;<\/sup><\/span>) attacking a carbonyl group (<span class=\"math-inline\" data-math=\"C=O\" data-index-in-node=\"75\">C=O<\/span>). The cyanide wants to attack the partially positive carbon. To make room, the <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"158\">\u00a0\u03c0 <\/span>\u00a0electrons in the double bond get kicked away from that carbon and land squarely on the oxygen atom. Because the electrons moved <i data-path-to-node=\"23\" data-index-in-node=\"290\">away<\/i> from the atom getting attacked, it&#8217;s a -E effect. This is standard behavior for electron-withdrawing groups like <span class=\"math-inline\" data-math=\"-NO_2\" data-index-in-node=\"408\">-NO<sub>2<\/sub><\/span>, <span class=\"math-inline\" data-math=\"-CN\" data-index-in-node=\"415\">-CN<\/span>, and <span class=\"math-inline\" data-math=\"-COOH\" data-index-in-node=\"424\">-COOH<\/span>.<\/p>\n<h2><strong>Electromeric effect For IIT JAM: Worked Example<\/strong><\/h2>\n<p>Let\u2019s look at a concrete example you might see on an exam. Consider the reaction of an alkene like ethene (<span class=\"math-inline\" data-math=\"CH_2=CH_2\" data-index-in-node=\"107\">CH<sub>2<\/sub>=CH<sub>2<\/sub><\/span>) with a proton (<span class=\"math-inline\" data-math=\"H^+\" data-index-in-node=\"133\">H<sup>+<\/sup><\/span>).<\/p>\n<p style=\"text-align: center;\"><span style=\"font-weight: 400;\">CH2=CH2+ H+\u2192 CH3=CH2+<\/span><\/p>\n<p data-path-to-node=\"28\">Here is what happens step-by-step behind the scenes:<\/p>\n<ol start=\"1\" data-path-to-node=\"29\">\n<li>\n<p data-path-to-node=\"29,0,0\">The electrophile (<span class=\"math-inline\" data-math=\"H^+\" data-index-in-node=\"18\">H<sup>+<\/sup><\/span>) approaches the ethene molecule.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"29,1,0\">The presence of this positive charge forces the <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"33\">\u03c0<\/span>\u00a0\u00a0electrons of the double bond to completely shift to one of the carbon atoms.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"29,2,0\">The carbon that grabs the electron pair uses it to bond with the incoming <span class=\"math-inline\" data-math=\"H^+\" data-index-in-node=\"74\">H<sup>+<\/sup><\/span>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"29,3,0\">The other carbon is left out in the cold\u2014it completely loses its share of the <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"33\">\u03c0<\/span>\u00a0\u00a0electrons and develops a full positive charge, becoming a carbocation.<\/p>\n<\/li>\n<\/ol>\n<p data-path-to-node=\"30\">This absolute, total transfer of <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"33\">\u03c0<\/span>\u00a0electrons is the textbook definition of the <strong>electromeric effect<\/strong> in action.<\/p>\n<h2><strong>Common Misconceptions about Electromeric effect<\/strong><\/h2>\n<p data-path-to-node=\"33\">It is super easy to trip up on the nuances here, and exam creators love to exploit these blind spots. Let&#8217;s bust two major myths right now.<\/p>\n<ul data-path-to-node=\"34\">\n<li>\n<p data-path-to-node=\"34,0,0\"><b data-path-to-node=\"34,0,0\" data-index-in-node=\"0\">Myth 1: The electromeric effect is permanent.<\/b><\/p>\n<ul data-path-to-node=\"34,0,1\">\n<li>\n<p data-path-to-node=\"34,0,1,0,0\"><i data-path-to-node=\"34,0,1,0,0\" data-index-in-node=\"0\">Reality:<\/i> Absolutely not! It&#8217;s completely temporary. If you take the attacking reagent away, the molecule snaps right back to its original ground state. Don&#8217;t confuse it with the inductive effect or resonance, which are permanent fixtures of the molecule.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p data-path-to-node=\"34,1,0\"><b data-path-to-node=\"34,1,0\" data-index-in-node=\"0\">Myth 2: It only happens when a proton (<span class=\"math-inline\" data-math=\"H^+\" data-index-in-node=\"39\">H<sup>+<\/sup><\/span>) is around.<\/b><\/p>\n<ul data-path-to-node=\"34,1,1\">\n<li>\n<p data-path-to-node=\"34,1,1,0,0\"><i data-path-to-node=\"34,1,1,0,0\" data-index-in-node=\"0\">Reality:<\/i> While <span class=\"math-inline\" data-math=\"H^+\" data-index-in-node=\"15\">H<sup>+<\/sup><\/span>\u00a0is the most common example used in classrooms, any strong electron-withdrawing or electron-donating attacking reagent can kickstart this effect.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"35\">Distinguishing between a static property (like inductive effect) and a dynamic response (like the <strong>electromeric effect<\/strong>) will save you from making silly mistakes on multiple-choice questions.<\/p>\n<h2><strong>Real-World Applications of Electromeric effect<\/strong><\/h2>\n<p data-path-to-node=\"38\">You might wonder why we obsess over this temporary electron shifting. In the real world, understanding this effect is how chemical plants and pharmaceutical labs design major reactions.<\/p>\n<p data-path-to-node=\"39\">When chemists are trying to build complex life-saving drugs, they have to predict exactly where a new atom will attach to a molecular chain. They have to balance electronic factors and steric hindrance (atomic crowding). By manipulating the conditions that trigger the<strong> electromeric effect<\/strong>, researchers can guide a reaction down the exact path they want, ensuring they get the right medicine instead of a flask full of useless chemical sludge.<\/p>\n<ul data-path-to-node=\"40\">\n<li>\n<p data-path-to-node=\"40,0,0\"><b data-path-to-node=\"40,0,0\" data-index-in-node=\"0\">Pharmaceutical synthesis:<\/b> Designing targeted molecules with specific biological reactions.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"40,1,0\"><b data-path-to-node=\"40,1,0\" data-index-in-node=\"0\">Material science:<\/b> Creating polymers and new materials with unique optical or electronic traits.<\/p>\n<\/li>\n<\/ul>\n<h2><strong>Exam Strategy for Electromeric effect For IIT JAM<\/strong><\/h2>\n<p data-path-to-node=\"45\">make sure you can clearly identify whether a reaction path shows a +E or -E effect based on where the arrows are pointing. Second, practice drawing out the mechanisms yourself.<\/p>\n<p data-path-to-node=\"46\">We know that balancing physical, inorganic, and organic chemistry can feel like a juggling act. That is why our team at <a href=\"https:\/\/www.vedprep.com\/online-courses\/iit-jam\"><b data-path-to-node=\"46\" data-index-in-node=\"120\">VedPrep<\/b> <\/a>builds structured study plans, mock tests, and simple breakdown guides. We want to help you cut through the confusion so you can walk into the exam hall feeling totally confident. Try making a quick concept map or a few flashcards contrasting the inductive, electromeric, and resonance effects\u2014it is an excellent way to lock this knowledge into your brain.<\/p>\n<h2><strong>Electromeric effect: Importance in Organic Chemistry<\/strong><\/h2>\n<p data-path-to-node=\"49\">At the end of the day, the <strong>electromeric effect<\/strong> helps explain the &#8220;why&#8221; behind reaction mechanisms. It shows us how electron-donating groups (EDGs) and electron-withdrawing groups (EWGs) call the shots when a reagent gets close.<\/p>\n<p data-path-to-node=\"50\">Here is a quick cheat sheet of how different groups behave during these interactions:<\/p>\n<table data-path-to-node=\"51\">\n<thead>\n<tr>\n<td><strong>Substituent Group<\/strong><\/td>\n<td><strong>Common Type<\/strong><\/td>\n<td><strong>General Behavior under Reagent Influence<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"51,1,0,0\"><b data-path-to-node=\"51,1,0,0\" data-index-in-node=\"0\">Hydroxyl (<span class=\"math-inline\" data-math=\"-OH\" data-index-in-node=\"10\">-OH<\/span>)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"51,1,1,0\">Electron-donating<\/span><\/td>\n<td><span data-path-to-node=\"51,1,2,0\">Tends to assist positive electron shifts (+E)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"51,2,0,0\"><b data-path-to-node=\"51,2,0,0\" data-index-in-node=\"0\">Amino (<span class=\"math-inline\" data-math=\"-NH_2\" data-index-in-node=\"7\">-NH<sub>2<\/sub><\/span>)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"51,2,1,0\">Electron-donating<\/span><\/td>\n<td><span data-path-to-node=\"51,2,2,0\">Freely shares electron density<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"51,3,0,0\"><b data-path-to-node=\"51,3,0,0\" data-index-in-node=\"0\">Nitro (<span class=\"math-inline\" data-math=\"-NO_2\" data-index-in-node=\"7\">-NO<sub>2<\/sub><\/span>)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"51,3,1,0\">Electron-withdrawing<\/span><\/td>\n<td><span data-path-to-node=\"51,3,2,0\">Strongly pulls <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"15\">\u03c0<\/span>\u00a0electrons away (-E)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"51,4,0,0\"><b data-path-to-node=\"51,4,0,0\" data-index-in-node=\"0\">Carboxyl (<span class=\"math-inline\" data-math=\"-COOH\" data-index-in-node=\"10\">-COOH<\/span>)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"51,4,1,0\">Electron-withdrawing<\/span><\/td>\n<td><span data-path-to-node=\"51,4,2,0\">Drains electron density from adjacent bonds<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong>Impacts of Electromeric effect<\/strong><\/h2>\n<p data-path-to-node=\"54\">To wrap things up, let&#8217;s look at a classic exam-style question: What is the effect of a <span class=\"math-inline\" data-math=\"-NO_2\" data-index-in-node=\"88\">-NO<sub>2<\/sub><\/span>\u00a0group on the electron density of a benzene ring when a nucleophile attacks?<\/p>\n<p data-path-to-node=\"55\">Because the nitro group is incredibly electron-withdrawing, it exerts a strong -E effect during the reaction. It pulls the <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"123\">\u00a0\u03c0 <\/span>\u00a0electrons through the conjugated ring system toward itself. This dramatically lowers the electron density at the ortho and para positions, changing how the entire molecule reacts.<\/p>\n<p data-path-to-node=\"56\">Let&#8217;s keep the main difference simple:<\/p>\n<ul data-path-to-node=\"57\">\n<li>\n<p data-path-to-node=\"57,0,0\"><b data-path-to-node=\"57,0,0\" data-index-in-node=\"0\">+E effect:<\/b> Displacement of the electron pair <i data-path-to-node=\"57,0,0\" data-index-in-node=\"45\">away<\/i> from the rest of the system, directly toward the attacking atom (e.g., attacks involving <span class=\"math-inline\" data-math=\"-OH\" data-index-in-node=\"139\">-OH<\/span>, <span class=\"math-inline\" data-math=\"-NH_2\" data-index-in-node=\"144\">-NH<sub>2<\/sub><\/span>).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"57,1,0\"><b data-path-to-node=\"57,1,0\" data-index-in-node=\"0\">-E effect:<\/b> Displacement of the electron pair <i data-path-to-node=\"57,1,0\" data-index-in-node=\"45\">away<\/i> from the attacking site, toward an adjacent atom or group (e.g., attacks involving <span class=\"math-inline\" data-math=\"-NO_2\" data-index-in-node=\"133\">-NO<sub>2<\/sub><\/span>, <span class=\"math-inline\" data-math=\"-COOH\" data-index-in-node=\"140\">-COOH<\/span>).<\/p>\n<\/li>\n<\/ul>\n<section>\n<h2 data-path-to-node=\"2\"><strong>Final Thoughts<\/strong><\/h2>\n<p data-path-to-node=\"3\">Mastering the <strong>electromeric effect<\/strong> is all about training your eye to see organic molecules not as static structures on a page, but as dynamic, shifting systems that respond instantly to their environment. While it is easy to get bogged down in the sea of electronic effects during your IIT JAM prep, remembering that the <strong>electromeric effect<\/strong> is a temporary, reagent-driven shift will keep you from falling into common exam traps. Keep practicing those reaction mechanisms, mapping out your electron arrows, and breaking down complex problems step-by-step.<\/p>\n<p data-path-to-node=\"3\">To know more in detail from our faculty, watch our YouTube video:<\/p>\n<p class=\"responsive-video-wrap clr\"><iframe title=\"General Organic Chemistry | Degree of Unsaturation | Introduction to GOC | VedPrep Chem Academy\" width=\"1200\" height=\"675\" src=\"https:\/\/www.youtube.com\/embed\/kBMdh32Ma24?list=PLdZcCa6mtW22nkmvTnMO4y-5fu-kFyIOx\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<h2>Frequently Asked Questions<\/h2>\n<\/section>\n<style>#sp-ea-17193 .spcollapsing { height: 0; overflow: hidden; transition-property: height;transition-duration: 300ms;}#sp-ea-17193.sp-easy-accordion>.sp-ea-single {margin-bottom: 10px; border: 1px solid #e2e2e2; }#sp-ea-17193.sp-easy-accordion>.sp-ea-single>.ea-header a {color: #444;}#sp-ea-17193.sp-easy-accordion>.sp-ea-single>.sp-collapse>.ea-body {background: #fff; color: #444;}#sp-ea-17193.sp-easy-accordion>.sp-ea-single {background: #eee;}#sp-ea-17193.sp-easy-accordion>.sp-ea-single>.ea-header a .ea-expand-icon { float: left; color: #444;font-size: 16px;}<\/style><div id=\"sp_easy_accordion-1779107417\">\n<div id=\"sp-ea-17193\" class=\"sp-ea-one sp-easy-accordion\" data-ea-active=\"ea-click\" data-ea-mode=\"vertical\" data-preloader=\"\" data-scroll-active-item=\"\" data-offset-to-scroll=\"0\">\n\n<!-- Start accordion card div. -->\n<div class=\"ea-card ea-expand sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-171930\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse171930\" aria-controls=\"collapse171930\" href=\"#\"  aria-expanded=\"true\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-minus\"><\/i> What is the electromeric effect in simple terms?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse collapsed show\" id=\"collapse171930\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-171930\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>The electromeric effect is a temporary shift of <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"48\">\u03c0<\/span>\u00a0electrons in a double or triple bond. It only happens when an attacking reagent (like an electrophile or nucleophile) approaches the molecule, forcing the electron pair to move completely to one of the bonded atoms.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-171931\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse171931\" aria-controls=\"collapse171931\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> Is the electromeric effect a permanent or temporary phenomenon?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse171931\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-171931\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>It is strictly a <b data-path-to-node=\"6\" data-index-in-node=\"17\">temporary<\/b> phenomenon. The electron shift only lasts as long as the attacking reagent is present. If you remove the reagent, the molecule returns to its original ground state.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-171932\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse171932\" aria-controls=\"collapse171932\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> How does the electromeric effect differ from the inductive effect?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse171932\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-171932\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>The inductive effect is permanent, involves the partial shifting of <span class=\"math-inline\" data-math=\"\\sigma\" data-index-in-node=\"68\">\u03c3<\/span>\u00a0(single bond) electrons, and operates over a chain of atoms. The electromeric effect is temporary, involves the complete transfer of \u03c0 (double\/triple bond) electrons, and requires an external attacking reagent.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-171933\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse171933\" aria-controls=\"collapse171933\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> What is the main difference between the electromeric effect and resonance (mesomeric effect)?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse171933\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-171933\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>While both involve <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"19\">\u03c0<\/span>\u00a0electrons, resonance is a permanent, intrinsic property of a molecule that happens automatically due to conjugation. The electromeric effect is dynamic and only gets triggered when an outsider (a reagent) attacks the molecule.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-171934\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse171934\" aria-controls=\"collapse171934\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> What exactly is the +E effect?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse171934\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-171934\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>The +E (Positive Electromeric) effect occurs when the <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"54\">\u03c0<\/span>\u00a0electrons of a multiple bond are transferred to the specific atom where the attacking reagent binds. A classic example is the addition of a proton (<span class=\"math-inline\" data-math=\"H^+\" data-index-in-node=\"206\">H<sup>+<\/sup><\/span>) to an alkene.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-171935\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse171935\" aria-controls=\"collapse171935\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> Can you give an example of a -E effect?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse171935\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-171935\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>The -E (Negative Electromeric) effect happens when <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"51\">\u00a0\u03c0 <\/span> electrons move away from the atom that is being attacked by the reagent. For example, when a cyanide ion (<span class=\"math-inline\" data-math=\"CN^-\" data-index-in-node=\"161\">CN<sup>-<\/sup><\/span>) attacks the carbon of a carbonyl group (<span class=\"math-inline\" data-math=\"C=O\" data-index-in-node=\"207\">C=O<\/span>), the <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"217\">\u03c0<\/span>\u00a0electrons shift away from that carbon onto the oxygen atom.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-171936\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse171936\" aria-controls=\"collapse171936\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> Does the electromeric effect occur in saturated compounds like alkanes?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse171936\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-171936\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>No, it does not. The electromeric effect strictly requires the presence of multiple bonds (<span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"91\">\u03c0<\/span>\u00a0electrons), such as alkenes (<span class=\"math-inline\" data-math=\"C=C\" data-index-in-node=\"124\">C=C<\/span>), alkynes (<span class=\"math-inline\" data-math=\"C\\equiv C\" data-index-in-node=\"139\">C \u2261 C<\/span>), or carbonyl groups (<span class=\"math-inline\" data-math=\"C=O\" data-index-in-node=\"171\">C=O<\/span>). Alkanes only have <span class=\"math-inline\" data-math=\"\\sigma\" data-index-in-node=\"195\">\u03c3<\/span>\u00a0bonds.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-171937\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse171937\" aria-controls=\"collapse171937\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> Why is the electromeric effect called a \"reagent-dependent\" effect?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse171937\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-171937\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p data-path-to-node=\"18\">It gets this name because it remains completely dormant until a reagent comes close. The type of reagent (whether it is an electron-seeking electrophile or a nucleus-seeking nucleophile) dictates exactly how and where the electrons will shift.<\/p>\n<h3 data-path-to-node=\"19\"><\/h3>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-171938\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse171938\" aria-controls=\"collapse171938\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> How does the electromeric effect impact reaction mechanisms?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse171938\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-171938\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>It determines the regioselectivity of a reaction (where the incoming atoms will attach). By causing a complete charge separation, it creates distinct positive and negative centers, directing the attacking reagent to the most favorable spot.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-171939\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse171939\" aria-controls=\"collapse171939\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> Does the electromeric effect involve partial or complete electron transfer?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse171939\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-171939\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>It involves the <b data-path-to-node=\"26\" data-index-in-node=\"16\">complete transfer<\/b> of a pair of <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"47\">\u03c0<\/span>\u00a0electrons. This results in full formal or temporary charges within the intermediate state, unlike the inductive effect which only creates partial (<span class=\"math-inline\" data-math=\"\\delta-\" data-index-in-node=\"209\">\u03b4<\/span><sup><span class=\"math-inline\" data-math=\"\\delta+\" data-index-in-node=\"198\">+<\/span><\/sup>\u00a0or <span class=\"math-inline\" data-math=\"\\delta-\" data-index-in-node=\"209\">\u03b4<sup>-<\/sup><\/span>) charges.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-1719310\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse1719310\" aria-controls=\"collapse1719310\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> Can the electromeric effect happen in an isolated double bond, or does it need conjugation?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse1719310\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-1719310\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>It can easily happen in an isolated double bond (like ethene). While conjugation can extend the effect across a longer chain, a single isolated <span class=\"math-inline\" data-math=\"\\pi\" data-index-in-node=\"144\">\u03c0<\/span>\u00a0bond is more than enough to display the electromeric effect when attacked.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-1719311\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse1719311\" aria-controls=\"collapse1719311\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> Is hyperconjugation permanent or temporary compared to the electromeric effect?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse1719311\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-1719311\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>Hyperconjugation is a permanent electronic effect involving the delocalization of \u03b4\u00a0electrons of a <span class=\"math-inline\" data-math=\"C-H\" data-index-in-node=\"104\">C-H<\/span> bond with an adjacent unhybridized <span class=\"math-inline\" data-math=\"p\" data-index-in-node=\"143\">p<\/span>-orbital. The electromeric effect remains the only purely temporary effect among the main electronic factors.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-1719312\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse1719312\" aria-controls=\"collapse1719312\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> Why do textbooks like Morrison &amp; Boyd emphasize this topic for competitive exams?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse1719312\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-1719312\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>Exam papers for IIT JAM, CSIR NET, and GATE frequently feature questions that test your understanding of reaction intermediates. Because the electromeric effect governs how carbocations and carbanions form during an attack, it is vital for writing accurate mechanisms.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<!-- Start accordion card div. -->\n<div class=\"ea-card  sp-ea-single\">\n\t<!-- Start accordion header. -->\n\t<h3 class=\"ea-header\">\n\t\t<!-- Add anchor tag for header. -->\n\t\t<a class=\"collapsed\" id=\"ea-header-1719313\" role=\"button\" data-sptoggle=\"spcollapse\" data-sptarget=\"#collapse1719313\" aria-controls=\"collapse1719313\" href=\"#\"  aria-expanded=\"false\" tabindex=\"0\">\n\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"ea-expand-icon eap-icon-ea-expand-plus\"><\/i> How does steric hindrance affect the electromeric effect?\t\t<\/a> <!-- Close anchor tag for header. -->\n\t<\/h3>\t<!-- Close header tag. -->\n\t<!-- Start collapsible content div. -->\n\t<div class=\"sp-collapse spcollapse \" id=\"collapse1719313\" data-parent=\"#sp-ea-17193\" role=\"region\" aria-labelledby=\"ea-header-1719313\">  <!-- Content div. -->\n\t\t<div class=\"ea-body\">\n\t\t<p>Steric hindrance (atomic crowding) doesn't stop the electron shift itself, but it can block the attacking reagent from getting close enough to trigger the effect in the first place, slowing down or changing the path of the reaction.<\/p>\n\t\t<\/div> <!-- Close content div. -->\n\t<\/div> <!-- Close collapse div. -->\n<\/div> <!-- Close card div. -->\n<\/div>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>The electromeric effect is a concept in organic chemistry that falls under the Organic Chemistry unit of the CSIR NET and IIT JAM syllabus. This topic is crucial for students to understand the electronic effects in organic molecules. The electromeric effect refers to the ability of a substituent group to donate or withdraw electrons through resonance, resulting in a change in the electron density of a molecule.<\/p>\n","protected":false},"author":12,"featured_media":12552,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","rank_math_seo_score":86},"categories":[23],"tags":[2923,7429,7430,7432,7431,2922],"class_list":["post-12553","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iit-jam","tag-competitive-exams","tag-electromeric-effect-for-iit-jam","tag-electromeric-effect-for-iit-jam-notes","tag-electromeric-effect-for-iit-jam-pdf","tag-electromeric-effect-for-iit-jam-questions","tag-vedprep","entry","has-media"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vedprep.com\/exams\/wp-json\/wp\/v2\/posts\/12553","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vedprep.com\/exams\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vedprep.com\/exams\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vedprep.com\/exams\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vedprep.com\/exams\/wp-json\/wp\/v2\/comments?post=12553"}],"version-history":[{"count":6,"href":"https:\/\/www.vedprep.com\/exams\/wp-json\/wp\/v2\/posts\/12553\/revisions"}],"predecessor-version":[{"id":17210,"href":"https:\/\/www.vedprep.com\/exams\/wp-json\/wp\/v2\/posts\/12553\/revisions\/17210"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.vedprep.com\/exams\/wp-json\/wp\/v2\/media\/12552"}],"wp:attachment":[{"href":"https:\/\/www.vedprep.com\/exams\/wp-json\/wp\/v2\/media?parent=12553"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vedprep.com\/exams\/wp-json\/wp\/v2\/categories?post=12553"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vedprep.com\/exams\/wp-json\/wp\/v2\/tags?post=12553"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}