{"id":4043,"date":"2026-03-31T06:04:48","date_gmt":"2026-03-31T06:04:48","guid":{"rendered":"https:\/\/ksquareinstitute.in\/blog\/?p=4043"},"modified":"2026-04-03T12:43:12","modified_gmt":"2026-04-03T12:43:12","slug":"aldehydes-ketones-carboxylic-acids-class-12","status":"publish","type":"post","link":"https:\/\/ksquareinstitute.in\/blog\/aldehydes-ketones-carboxylic-acids-class-12\/","title":{"rendered":"Aldehydes Ketones Carboxylic Acids Class 12: High-Yield NEET Notes"},"content":{"rendered":"\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n    <link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n    <link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300..600;1,9..40,300..600&#038;family=JetBrains+Mono:wght@400;500;700&#038;family=Plus+Jakarta+Sans:wght@400;600;700;800&#038;display=swap\" rel=\"stylesheet\">\n    <style>\n        :root {\n            --accent: #e8600a;\n            --accent-light: #fff3ec;\n            --accent-mid: #fde3cc;\n            --dark: #111827;\n            --text: #1a1a1a;\n            --text-muted: #4b5563;\n            --border: #e5e7eb;\n            --green-bg: #f0fdf4;\n            --green-border: #16a34a;\n            --blue-bg: #eff6ff;\n            --blue-border: #3b82f6;\n        }\n\n        * { box-sizing: border-box; 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color: white; display: inline-flex; align-items: center; gap: 10px; padding: 12px 24px; border-radius: 8px; text-decoration: none; font-weight: 600; margin-top: 20px; }\n    <\/style>\n<\/head>\n<body>\n\n<div class=\"content-wrapper\">\n    <div class=\"container\">\n\n        <h2><div class=\"badge\">01<\/div><span>Introduction to Aldehydes, Ketones and Carboxylic Acids<\/span><\/h2>\n        \n\n        <p>Mastering the chemistry of carbonyl and carboxyl groups is non-negotiable for medical aspirants. This comprehensive <strong>aldehydes ketones carboxylic acids class 12<\/strong> guide provides a structured breakdown of molecules containing the carbon-oxygen double bond (&gt;C=O). These compounds are the workhorses of organic synthesis and are vital to understanding biochemical processes like metabolism. For NEET aspirants, this chapter is a primary scoring area, consistently accounting for significant weightage through named reactions and conceptual acidity-basicity trends.<\/p>\n\n        <p>Functional groups in this category are defined by the attachments to the carbonyl carbon. If one attachment is a hydrogen atom, it is an <strong>Aldehyde<\/strong> (&minus;CHO). If both are alkyl or aryl groups, it is a <strong>Ketone<\/strong> (&gt;C=O). When the carbonyl carbon is bonded to a hydroxyl group, it forms the <strong>Carboxylic Acid<\/strong> (&minus;COOH) group, which exhibits unique resonance-stabilized acidity.<\/p>\n\n        <div class=\"card-grid\">\n            <div class=\"card\">\n                <span class=\"card-title\">ALDEHYDES &#038; KETONES<\/span>\n                Known collectively as carbonyl compounds. They primarily undergo nucleophilic addition reactions due to the polar nature of the C=O bond.\n            <\/div>\n            <div class=\"card\">\n                <span class=\"card-title\">CARBOXYLIC ACIDS<\/span>\n                Characterized by the carboxyl group. They are the most acidic organic compounds among neutral molecules due to resonance in the carboxylate ion.\n            <\/div>\n        <\/div>\n\n        <h2><div class=\"badge\">02<\/div><span><span>IUPAC Nomenclature &#038; Common Names<\/span><\/span><\/h2>\n        <p>In your <strong>aldehydes ketones carboxylic acids class 12<\/strong> study, accurately identifying parent chains is the first hurdle. For aldehydes, the suffix &#8216;-al&#8217; is used, and the carbonyl carbon is always C1. Ketones use &#8216;-one&#8217;, and the position of the carbonyl must be specified. Carboxylic acids utilize &#8216;-oic acid&#8217; as the principal suffix.<\/p>\n\n        <div class=\"table-container\">\n            <table>\n                <thead>\n                    <tr>\n                        <th>Structure<\/th>\n                        <th>Common Name<\/th>\n                        <th>IUPAC Name<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>HCHO<\/td>\n                        <td>Formaldehyde<\/td>\n                        <td>Methanal<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>CH<sub>3<\/sub>CHO<\/td>\n                        <td>Acetaldehyde<\/td>\n                        <td>Ethanal<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>CH<sub>3<\/sub>COCH<sub>3<\/sub><\/td>\n                        <td>Acetone<\/td>\n                        <td>Propanone<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>CH<sub>3<\/sub>COOH<\/td>\n                        <td>Acetic acid<\/td>\n                        <td>Ethanoic acid<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n        <\/div>\n\n        <h2><div class=\"badge\">03<\/div><span><span>Structure &#038; Polarity of the Carbonyl Group<\/span><\/span><\/h2>\n        <p>The carbonyl carbon is sp<sup>2<\/sup> hybridized and forms three sigma bonds in a trigonal planar arrangement. The pi bond is formed by the lateral overlap of p-orbitals. Oxygen is significantly more electronegative than carbon, making the bond highly polar.<\/p>\n        \n        <div class=\"formula-dark\">\n            <span class=\"formula-dark-label\">RESONANCE IN CARBONYL<\/span>\n            <div class=\"formula-dark-content\">\n                &gt;C=O &harr; &gt;C<sup>+<\/sup>&minus;O<sup>&minus;<\/sup>\n            <\/div>\n            <p style=\"font-size: 0.85rem; margin-top: 5px;\">(The dipolar character explains why the carbon atom is an electrophile and oxygen is a nucleophile.)<\/p>\n        <\/div>\n\n        <!-- Promotional Banner 1 -->\n        <a href=\"https:\/\/courses.ksquare.co.in\/new-courses\/3-mission-180-neet-physics-rankers-batch\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" style=\"display:block; margin-bottom:40px;\">\n          <img decoding=\"async\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/03\/Course-Poromo-Banner-scaled.png\" alt=\"Mission 180 NEET Physics Rankers Batch - KSquare Career Institute\" style=\"width:100%; height:auto; border-radius:10px; display:block;\">\n        <\/a>\n\n        <h2><div class=\"badge\">04<\/div><span><span>Methods of Preparation<\/span><\/span><\/h2>\n        <p>Preparing <strong>aldehydes ketones carboxylic acids class 12<\/strong> compounds involves specific named reactions that are high-yield for NEET. Oxidation of alcohols is the most common laboratory method, but industrial synthesis relies on specialized reductions.<\/p>\n\n        <div class=\"formula-orange\">\n            <span class=\"formula-orange-label\">ROSENMUND REDUCTION<\/span>\n            <div class=\"formula-orange-content\">\n                R&minus;COCl + H<sub>2<\/sub> (Pd&minus;BaSO<sub>4<\/sub>) &rarr; R&minus;CHO + HCl\n            <\/div>\n            <p style=\"font-size: 0.85rem; margin-top: 5px;\">(The catalyst is poisoned with sulfur or quinoline to prevent further reduction to alcohols.)<\/p>\n        <\/div>\n\n        <h3>Preparation of Ketones &#038; Acids<\/h3>\n        <ul>\n            <li><strong>Stephen Reaction:<\/strong> Nitriles are reduced with SnCl<sub>2<\/sub>\/HCl followed by hydrolysis to give aldehydes.<\/li>\n            <li><strong>Friedel-Crafts Acylation:<\/strong> Benzene + RCOCl (anhyd. AlCl<sub>3<\/sub>) &rarr; Aromatic Ketones.<\/li>\n            <li><strong>Oxidation of Toluene:<\/strong> Chromyl chloride (Etard reaction) converts toluene to benzaldehyde.<\/li>\n            <li><strong>Grignard Reagents:<\/strong> RMgX + CO<sub>2<\/sub> followed by hydrolysis yields Carboxylic Acids.<\/li>\n        <\/ul>\n\n        <h2><div class=\"badge\">05<\/div><span><span>Physical Properties &#038; Hydrogen Bonding<\/span><\/span><\/h2>\n        <p>Aldehydes and ketones have higher boiling points than non-polar hydrocarbons but lower than alcohols of similar mass because they lack intermolecular hydrogen bonding. However, carboxylic acids have the highest boiling points due to the formation of stable <strong>dimers<\/strong> via strong H-bonds.<\/p>\n\n        <div class=\"callout tip\">\n            <div class=\"callout-pill\">TIP<\/div>\n            Boiling Point Order: Carboxylic Acids &gt; Alcohols &gt; Ketones\/Aldehydes &gt; Ethers &gt; Hydrocarbons. Solubility in water decreases rapidly as the alkyl chain length increases.\n        <\/div>\n\n        <h2><div class=\"badge\">06<\/div><span><span>Chemical Reactions of Aldehydes &#038; Ketones<\/span><\/span><\/h2>\n        <p>The primary reaction of the carbonyl group is <strong>Nucleophilic Addition<\/strong>. Because aldehydes have fewer alkyl groups (less steric hindrance) and are more electronically deficient than ketones, they are generally more reactive.<\/p>\n\n        <div class=\"table-container\">\n            <table>\n                <thead>\n                    <tr>\n                        <th>Reaction Type<\/th>\n                        <th>Reagent<\/th>\n                        <th>Major Product<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>Addition of HCN<\/td>\n                        <td>HCN \/ OH<sup>&minus;<\/sup><\/td>\n                        <td>Cyanohydrin<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Grignard Addition<\/td>\n                        <td>RMgX \/ H<sub>3<\/sub>O<sup>+<\/sup><\/td>\n                        <td>Secondary\/Tertiary Alcohol<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Clemmensen Reduction<\/td>\n                        <td>Zn-Hg \/ conc. HCl<\/td>\n                        <td>Alkane (&gt;CH<sub>2<\/sub>)<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Wolff-Kishner<\/td>\n                        <td>NH<sub>2<\/sub>NH<sub>2<\/sub> \/ KOH \/ Glycol<\/td>\n                        <td>Alkane (&gt;CH<sub>2<\/sub>)<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n        <\/div>\n\n        <h2><div class=\"badge\">07<\/div><span><span>Reactions due to &alpha;-Hydrogen<\/span><\/span><\/h2>\n        <p>The acidity of &alpha;-hydrogen in carbonyl compounds leads to condensation reactions. This is the most important conceptual part of the <strong>aldehydes ketones carboxylic acids class 12<\/strong> chapter for competitive exams.<\/p>\n\n        <div class=\"card-grid\">\n            <div class=\"card\">\n                <span class=\"card-title\">ALDOL CONDENSATION<\/span>\n                Aldehydes\/Ketones with at least one &alpha;-H react with dilute alkali to form &beta;-hydroxy carbonyl compounds.\n            <\/div>\n            <div class=\"card\">\n                <span class=\"card-title\">CANNIZZARO REACTION<\/span>\n                Aldehydes with NO &alpha;-H (like HCHO or PhCHO) undergo self-oxidation and reduction (disproportionation) with conc. alkali.\n            <\/div>\n        <\/div>\n\n        <div class=\"callout warning\">\n            <div class=\"callout-pill\">WARN<\/div>\n            Haloform Reaction: Only methyl ketones (CH<sub>3<\/sub>CO&minus; group) react with I<sub>2<\/sub>\/NaOH to give a yellow precipitate of Iodoform (CHI<sub>3<\/sub>).\n        <\/div>\n\n        <!-- Promotional Banner 2 -->\n        <a href=\"https:\/\/ksquareinstitute.in\/neet-2026-rank-predictor\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" style=\"display:block; margin-bottom:40px;\">\n          <img decoding=\"async\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/03\/neet-2026-college-and-rank-predictor-scaled.png\" alt=\"NEET 2026 Rank Predictor - KSquare Career Institute\" style=\"width:100%; height:auto; border-radius:10px; display:block;\">\n        <\/a>\n\n        <h2><div class=\"badge\">08<\/div><span><span>Chemical Reactions of Carboxylic Acids<\/span><\/span><\/h2>\n        <p>Carboxylic acids react via O&minus;H cleavage (acidity), C&minus;OH cleavage (esterification), or the &minus;COOH group as a whole. A unique reaction for acids is the <strong>Hell-Volhard-Zelinsky (HVZ)<\/strong> reaction.<\/p>\n\n        <div class=\"formula-dark\">\n            <span class=\"formula-dark-label\">HVZ REACTION<\/span>\n            <div class=\"formula-dark-content\">\n                R&minus;CH<sub>2<\/sub>&minus;COOH + X<sub>2<\/sub> (Red P) &rarr; R&minus;CH(X)&minus;COOH\n            <\/div>\n            <p style=\"font-size: 0.85rem; margin-top: 5px;\">(Introduces a halogen at the &alpha;-position of carboxylic acids.)<\/p>\n        <\/div>\n\n        <h2><div class=\"badge\">09<\/div><span><span>Distinguishing Tests &#038; Analytical Tools<\/span><\/span><\/h2>\n        <p>Differentiating between <strong>aldehydes ketones carboxylic acids class 12<\/strong> compounds in the lab is a common practical and theoretical target. These tests exploit the ease of oxidation of aldehydes compared to ketones.<\/p>\n        \n        <ul>\n            <li><strong>Tollens&#8217; Test:<\/strong> Aldehydes reduce ammoniacal silver nitrate to form a bright silver mirror. Ketones do not react.<\/li>\n            <li><strong>Fehling&#8217;s Test:<\/strong> Aldehydes reduce Fehling&#8217;s solution to give a red precipitate of Cu<sub>2<\/sub>O. Aromatic aldehydes fail this test.<\/li>\n            <li><strong>NaHCO<sub>3<\/sub> Test:<\/strong> Carboxylic acids react with sodium bicarbonate to evolve CO<sub>2<\/sub> gas with brisk effervescence.<\/li>\n        <\/ul>\n\n        <div class=\"internal-links\">\n            <span class=\"internal-links-title\">ENHANCE YOUR NEET PREPARATION<\/span>\n            <a href=\"https:\/\/ksquareinstitute.in\/blog\/neet-physics-survival-kit-2026\/\">NEET Physics Survival Kit 2026<\/a>\n            <a href=\"https:\/\/ksquareinstitute.in\/blog\/organic-chemistry-strategy-neet\/\">Organic Chemistry Strategy for NEET<\/a>\n            <a href=\"https:\/\/ksquareinstitute.in\/blog\/neet-biology-tricks-for-exams\/\">NEET Biology Tricks for Exams<\/a>\n            <a href=\"https:\/\/ksquareinstitute.in\/blog\/score-340-in-neet-biology\/\">How to Score 340 in NEET Biology<\/a>\n            <a href=\"https:\/\/ksquareinstitute.in\/blog\/top-10-tricky-neet-biology-diagrams\/\">Top 10 Tricky Biology Diagrams<\/a>\n        <\/div>\n\n        <div class=\"revision-box\">\n            <h3>Quick Revision Summary<\/h3>\n            <ul>\n                <li><strong>Reactivity:<\/strong> Aldehydes &gt; Ketones (due to inductive and steric effects).<\/li>\n                <li><strong>Acidity:<\/strong> EWG increases acid strength; EDG decreases it (p-Nitrobenzoic &gt; Benzoic).<\/li>\n                <li><strong>Rosenmund:<\/strong> Preparation of aldehydes from acid chlorides.<\/li>\n                <li><strong>Aldol:<\/strong> Requires &alpha;-hydrogen; produces &beta;-hydroxy products.<\/li>\n                <li><strong>Cannizzaro:<\/strong> No &alpha;-hydrogen; disproportionation to alcohol and acid salt.<\/li>\n                <li><strong>Clemmensen:<\/strong> Acidic conditions; Wolff-Kishner: Basic conditions.<\/li>\n                <li><strong>Tollens&#8217; Reagent:<\/strong> [Ag(NH<sub>3<\/sub>)<sub>2<\/sub>]<sup>+<\/sup>.<\/li>\n                <li><strong>HVZ:<\/strong> &alpha;-halogenation of carboxylic acids.<\/li>\n                <li><strong>Decarboxylation:<\/strong> Soda lime (NaOH + CaO) removes CO<sub>2<\/sub>.<\/li>\n                <li><strong>Formic Acid:<\/strong> Only carboxylic acid to show Tollens&#8217; test (acts as reducing agent).<\/li>\n            <\/ul>\n            <a href=\"#\" class=\"download-btn\" rel=\"nofollow noopener noreferrer\">\n                <span>Download Formula Sheet (PDF)<\/span>\n            <\/a>\n        <\/div>\n\n        <h2><div class=\"badge\">10<\/div><span><span>Frequently Asked Questions<\/span><\/span><\/h2>\n        <div class=\"faq-container\">\n            <details>\n                <summary>\n                    <span>Why are aldehydes more reactive than ketones towards nucleophilic addition?<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">1. **Steric Effect:** Aldehydes have only one alkyl group, making it easier for the nucleophile to approach. 2. **Electronic Effect:** Two alkyl groups in ketones reduce the positive charge on the carbonyl carbon via the +I effect, making it less electrophilic.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>Does benzaldehyde undergo Aldol condensation?<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">No, benzaldehyde does not have &alpha;-hydrogen atoms. Therefore, it cannot undergo self-aldol condensation. Instead, it undergoes the Cannizzaro reaction. However, it can participate in Cross-Aldol with molecules that do have &alpha;-H.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>Explain the acidity of carboxylic acids compared to phenols.<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">Carboxylic acids are stronger acids. In the carboxylate ion, the negative charge is delocalized over two highly electronegative oxygen atoms. In the phenoxide ion, the charge is delocalized over one oxygen and less electronegative carbon atoms of the ring.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>What is the use of the Hell-Volhard-Zelinsky reaction?<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">The HVZ reaction is used to prepare &alpha;-halo carboxylic acids by reacting the acid with chlorine or bromine in the presence of a small amount of red phosphorus. These products are versatile intermediates in organic synthesis.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>Why do carboxylic acids exist as dimers in gas phase?<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">Even in the vapor state or in aprotic solvents, carboxylic acid molecules pair up via two intermolecular hydrogen bonds. This dimerization significantly increases their effective molecular mass and boiling points.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>Can we distinguish between Acetone and Benzaldehyde?<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">Yes. Benzaldehyde gives a positive Tollens&#8217; test (silver mirror), while Acetone does not. Conversely, Acetone gives a positive Iodoform test (yellow precipitate), which Benzaldehyde fails to give.<\/div>\n            <\/details>\n        <\/div>\n\n        <div class=\"cta-section\">\n            <h2>Accelerate Your NEET ranking with KSquare<\/h2>\n            <p>Mastering Aldehydes, Ketones, and Carboxylic Acids is a cornerstone of medical college entrance success. Join KSquare Institute&#8217;s Mission 180 Rankers Batch for expert-led modules, high-yield practice sessions, and 24\/7 doubt resolution to secure your seat.<\/p>\n            <div class=\"cta-buttons\">\n                <a href=\"https:\/\/courses.ksquare.co.in\/new-courses\/3-mission-180-neet-physics-rankers-batch\" class=\"btn btn-white\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Join Rankers Batch<\/a>\n                <a href=\"https:\/\/ksquareinstitute.in\/free-study-material\/\" class=\"btn btn-outline\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Get Free Study Material<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<\/body>\n<\/html>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  <meta charset=\"UTF-8\">\n  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n  <title>Table of Contents \u2014 Chemistry Class 12<\/title>\n  \n  <!-- Google Fonts Import -->\n  <link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n  <link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n  <link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&#038;family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&#038;display=swap\" rel=\"stylesheet\">\n  \n  <style>\n    \/* Scoped wrapper using a unique ID (#chemistry-toc-wrapper).\n       This ensures these styles do not leak and affect other parts of your website.\n    *\/\n    #chemistry-toc-wrapper {\n      font-family: 'DM Sans', sans-serif;\n      width: 100%;\n      margin: 0;\n      padding: 60px 0;\n      color: #111;\n      background: #fff;\n      -webkit-font-smoothing: antialiased;\n    }\n\n    #chemistry-toc-wrapper .container-inner {\n      width: 100%;\n      margin: 0 auto;\n      padding: 0; \/* Edge-to-edge layout *\/\n    }\n\n    #chemistry-toc-wrapper h1 {\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 0.85rem;\n      font-weight: 700;\n      color: #71717a;\n      margin: 0 0 8px;\n      letter-spacing: 0.1em;\n      text-transform: uppercase;\n      padding-left: 16px; \n    }\n\n    #chemistry-toc-wrapper h2 {\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 2.25rem;\n      font-weight: 800;\n      margin: 0 0 48px;\n      letter-spacing: -0.02em;\n      color: #09090b;\n      padding-left: 16px;\n    }\n\n    #chemistry-toc-wrapper table {\n      width: 100%;\n      border-collapse: collapse;\n      border-spacing: 0;\n      border-top: 1px solid #e4e4e7;\n      border-bottom: 1px solid #e4e4e7;\n    }\n\n    #chemistry-toc-wrapper tr {\n      border-bottom: 1px solid #e4e4e7;\n      transition: all 0.2s ease;\n    }\n\n    #chemistry-toc-wrapper tr:hover {\n      background-color: #f8fafc;\n    }\n\n    #chemistry-toc-wrapper tr:last-child {\n      border-bottom: none;\n    }\n\n    #chemistry-toc-wrapper td {\n      padding: 24px 16px;\n      vertical-align: middle;\n      font-size: 1.05rem;\n      font-weight: 500;\n      border-right: 1px solid #e4e4e7; \/* Column borders as per reference image *\/\n    }\n\n    #chemistry-toc-wrapper td:last-child {\n      border-right: none;\n    }\n\n    \/* Column 1: Index Numbers *\/\n    #chemistry-toc-wrapper td:first-child {\n      color: #a1a1aa;\n      font-size: 0.9rem;\n      width: 70px;\n      font-weight: 400;\n      font-variant-numeric: tabular-nums;\n      text-align: center;\n      padding-left: 10px;\n    }\n\n    \/* Column 2: Chapter Titles *\/\n    #chemistry-toc-wrapper td:nth-child(2) {\n      padding-left: 32px; \/* Breathing room before chapter text *\/\n      color: #18181b;\n    }\n\n    \/* Column 3: Action Button *\/\n    #chemistry-toc-wrapper td:last-child {\n      text-align: right;\n      width: 180px;\n      padding-right: 24px; \/* Space after the button *\/\n    }\n\n    \/* Premium Button Styling *\/\n    #chemistry-toc-wrapper a.go {\n      display: inline-block;\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 0.75rem;\n      font-weight: 800;\n      padding: 12px 24px;\n      border: 1.5px solid #18181b;\n      border-radius: 8px;\n      color: #18181b;\n      text-decoration: none;\n      letter-spacing: 0.05em;\n      text-transform: uppercase;\n      transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);\n      white-space: nowrap;\n    }\n\n    #chemistry-toc-wrapper a.go:hover {\n      background: #18181b;\n      color: #ffffff;\n      transform: translateY(-2px);\n      box-shadow: 0 4px 12px rgba(24, 24, 27, 0.15);\n    }\n\n    \/* Responsive Logic *\/\n    @media (max-width: 768px) {\n      #chemistry-toc-wrapper h2 {\n        font-size: 1.75rem;\n        margin-bottom: 32px;\n        padding-left: 12px;\n      }\n      #chemistry-toc-wrapper td {\n        padding: 18px 12px;\n        font-size: 0.95rem;\n      }\n      #chemistry-toc-wrapper td:nth-child(2) {\n        padding-left: 16px;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<div id=\"chemistry-toc-wrapper\">\n  <div class=\"container-inner\">\n    <h1>Table of Contents<\/h1>\n    <h2>Chemistry &mdash; Class 12<\/h2>\n    \n    <table>\n      <tr><td>01<\/td><td>Solutions<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/solutions-chemistry-class-12-notes-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>02<\/td><td>Electrochemistry<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/electrochemistry-class-12-notes-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>03<\/td><td>Chemical Kinetics<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/chemical-kinetics-class-12-notes-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>04<\/td><td>d- and f-Block Elements<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/d-and-f-block-elements-class-12-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>05<\/td><td>Coordination Compounds<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/coordination-compounds-class-12-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>06<\/td><td>Haloalkanes and Haloarenes<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/haloalkanes-and-haloarenes-class-12-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>07<\/td><td>Alcohols, Phenols and Ethers<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/alcohols-phenols-ethers-class-12-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>08<\/td><td>Aldehydes, Ketones and Carboxylic Acids<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/aldehydes-ketones-carboxylic-acids-class-12\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>09<\/td><td>Amines<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/amines-class-12-notes-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>10<\/td><td>Biomolecules<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/biomolecules-class-12-chemistry\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n    <\/table>\n  <\/div>\n<\/div>\n\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>01 Introduction to Aldehydes, Ketones and Carboxylic Acids Mastering the chemistry of carbonyl and carboxyl groups is non-negotiable for medical aspirants. This comprehensive aldehydes ketones carboxylic acids class 12 guide provides a structured breakdown of molecules containing the carbon-oxygen double bond (&gt;C=O). These compounds are the workhorses of organic synthesis and are vital to understanding [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[127],"tags":[374,373,376,375,377],"class_list":["post-4043","post","type-post","status-publish","format-standard","hentry","category-free-study-material","tag-aldehydes-and-ketones-reactions","tag-aldehydes-ketones-carboxylic-acids-class-12","tag-carbonyl-compounds-class-12-notes","tag-carboxylic-acids-notes-pdf","tag-class-12-chemistry-organic-chemistry"],"blocksy_meta":{"page_structure_type":"type-1","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/4043","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/comments?post=4043"}],"version-history":[{"count":2,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/4043\/revisions"}],"predecessor-version":[{"id":4250,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/4043\/revisions\/4250"}],"wp:attachment":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/media?parent=4043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/categories?post=4043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/tags?post=4043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}