{"id":4045,"date":"2026-03-31T06:14:23","date_gmt":"2026-03-31T06:14:23","guid":{"rendered":"https:\/\/ksquareinstitute.in\/blog\/?p=4045"},"modified":"2026-04-03T12:43:35","modified_gmt":"2026-04-03T12:43:35","slug":"amines-class-12-notes-pdf","status":"publish","type":"post","link":"https:\/\/ksquareinstitute.in\/blog\/amines-class-12-notes-pdf\/","title":{"rendered":"Amines Class 12 PDF: The Ultimate NEET Preparation Guide"},"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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This <strong>amines class 12 notes pdf<\/strong> guide provides a deep dive into these nitrogen-containing compounds, which are fundamental to biology and industry. Amines play a crucial role in the structure of proteins, vitamins, and hormones, making them a high-yield chapter for NEET aspirants. Understanding the basicity and reactive nature of amines is essential for scoring well in the organic chemistry section of the competitive entrance examination.<\/p>\n\n        <p>Functional groups of amines are defined by the number of carbon atoms directly attached to the nitrogen. Whether you are dealing with primary aliphatic amines or complex aromatic derivatives like aniline, the electronic effects of the nitrogen lone pair dictate the molecule&#8217;s chemical personality. In this study guide, we will explore the synthesis, properties, and significant named reactions that you must master for a top NEET rank.<\/p>\n\n        <h2><div class=\"badge\">02<\/div><span>Structure and Geometry of Amines<\/span><\/h2>\n        <p>The nitrogen atom in amines is sp<sup>3<\/sup> hybridized. However, unlike the tetrahedral geometry of carbon, amines adopt a <strong>Trigonal Pyramidal<\/strong> shape. This is due to the presence of a lone pair of electrons on the nitrogen atom, which exerts more repulsion than bonding pairs, squeezing the bond angles.<\/p>\n\n        <div class=\"card-grid\">\n            <div class=\"card\">\n                <span class=\"card-title\">BOND ANGLES<\/span>\n                In trimethylamine, the C&minus;N&minus;C bond angle is approximately 108&deg;, slightly less than the ideal tetrahedral angle of 109.5&deg;.\n            <\/div>\n            <div class=\"card\">\n                <span class=\"card-title\">HYBRIDIZATION<\/span>\n                Nitrogen uses four sp<sup>3<\/sup> orbitals: three for bonding with H or C, and one for the lone pair.\n            <\/div>\n        <\/div>\n\n        <h2><div class=\"badge\">03<\/div><span>Classification for Amines Class 12 Notes PDF<\/span><\/h2>\n        <p>Classification is based on the number of organic groups attached to the nitrogen atom. This is a foundational concept in the <strong>amines class 12 notes pdf<\/strong> that prevents confusion during naming and mechanism prediction.<\/p>\n\n        <div class=\"table-container\">\n            <table>\n                <thead>\n                    <tr>\n                        <th>Type<\/th>\n                        <th>General Formula<\/th>\n                        <th>Example<\/th>\n                        <th>Description<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>Primary (1&deg;)<\/td>\n                        <td>R&minus;NH<sub>2<\/sub><\/td>\n                        <td>Ethylamine<\/td>\n                        <td>One hydrogen replaced by an alkyl\/aryl group.<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Secondary (2&deg;)<\/td>\n                        <td>R<sub>2<\/sub>NH<\/td>\n                        <td>Dimethylamine<\/td>\n                        <td>Two hydrogens replaced.<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Tertiary (3&deg;)<\/td>\n                        <td>R<sub>3<\/sub>N<\/td>\n                        <td>Triethylamine<\/td>\n                        <td>All three hydrogens replaced.<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\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>Preparation Methods in Amines Class 12 Notes PDF<\/span><\/h2>\n        <p>Synthesis reactions for amines are frequent NEET targets. The <strong>amines class 12 notes pdf<\/strong> typically highlights three major named reactions that offer high-purity products or involve interesting carbon-chain shifts.<\/p>\n\n        <div class=\"formula-dark\">\n            <span class=\"formula-dark-label\">HOFFMANN BROMAMIDE DEGRADATION<\/span>\n            <div class=\"formula-dark-content\">\n                R&minus;CONH<sub>2<\/sub> + Br<sub>2<\/sub> + 4NaOH &rarr; R&minus;NH<sub>2<\/sub> + Na<sub>2<\/sub>CO<sub>3<\/sub> + 2NaBr + 2H<sub>2<\/sub>O\n            <\/div>\n            <p style=\"font-size: 0.85rem; margin-top: 5px;\">(Note: The amine formed has one carbon atom less than the parent amide.)<\/p>\n        <\/div>\n\n        <h3>Key Synthesis Routes<\/h3>\n        <ul>\n            <li><strong>Gabriel Phthalimide Synthesis:<\/strong> Used exclusively for preparing pure 1&deg; aliphatic amines. Aromatic amines cannot be prepared this way due to the low reactivity of aryl halides in nucleophilic substitution.<\/li>\n            <li><strong>Reduction of Nitriles:<\/strong> R&minus;CN reduced by LiAlH<sub>4<\/sub> or catalytic hydrogenation yields 1&deg; amines.<\/li>\n            <li><strong>Ammonolysis of Alkyl Halides:<\/strong> Reaction of R&minus;X with ethanolic ammonia. It often results in a mixture of 1&deg;, 2&deg;, 3&deg; amines and quaternary salts.<\/li>\n        <\/ul>\n\n        <div class=\"callout tip\">\n            <div class=\"callout-pill\">TIP<\/div>\n            To obtain a primary amine as the major product during ammonolysis, always use a large excess of Ammonia (NH<sub>3<\/sub>).\n        <\/div>\n\n        <h2><div class=\"badge\">05<\/div><span>Physical Properties: Boiling Point &#038; Solubility<\/span><\/h2>\n        <p>Primary and secondary amines can form intermolecular hydrogen bonds due to the presence of N&minus;H bonds. Tertiary amines lack these bonds between themselves, affecting their physical state and boiling points.<\/p>\n\n        <div class=\"formula-orange\">\n            <div class=\"formula-orange-content\">\n                Boiling Point Order: 1&deg; Amines &gt; 2&deg; Amines &gt; 3&deg; Amines (for isomeric amines).\n            <\/div>\n        <\/div>\n\n        <p>Low molecular weight amines are soluble in water because they can form H-bonds with water molecules. However, solubility decreases as the size of the hydrophobic alkyl group increases.<\/p>\n\n        <h2><div class=\"badge\">06<\/div><span>Chemical Properties for Amines Class 12 Notes PDF<\/span><\/h2>\n        <p>The reactivity of amines is primarily due to the lone pair of electrons on the nitrogen atom. This makes them act as both <strong>Lewis Bases<\/strong> and nucleophiles. Understanding basicity is the most critical part of this <strong>amines class 12 notes pdf<\/strong>.<\/p>\n\n        <h3>Basicity of Amines<\/h3>\n        <p>Basicity depends on the ease with which the nitrogen lone pair can be donated. In the gas phase, the order is straightforward: 3&deg; &gt; 2&deg; &gt; 1&deg; &gt; NH<sub>3<\/sub> due to the +I effect of alkyl groups. However, in aqueous solutions, the order becomes complex due to **Solvation Effects** and **Steric Hindrance**.<\/p>\n\n        <div class=\"table-container\">\n            <table>\n                <thead>\n                    <tr>\n                        <th>Alkyl Group<\/th>\n                        <th>Basicity Order (Aqueous Phase)<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>Methyl (&minus;CH<sub>3<\/sub>)<\/td>\n                        <td>2&deg; &gt; 1&deg; &gt; 3&deg; &gt; NH<sub>3<\/sub><\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Ethyl (&minus;C<sub>2<\/sub>H<sub>5<\/sub>)<\/td>\n                        <td>2&deg; &gt; 3&deg; &gt; 1&deg; &gt; NH<sub>3<\/sub><\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n        <\/div>\n\n        <div class=\"callout warning\">\n            <div class=\"callout-pill\">WARN<\/div>\n            Aromatic amines (Aniline) are much weaker bases than ammonia. This is because the nitrogen lone pair is delocalized into the benzene ring by resonance, making it less available for protonation.\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\">07<\/div><span>Important Chemical Reactions: Carbylamine &#038; Nitrous Acid<\/span><\/h2>\n        <p>Two reactions are quintessential for distinguishing different classes of amines in the lab and on the NEET exam paper.<\/p>\n\n        <div class=\"card-grid\">\n            <div class=\"card\">\n                <span class=\"card-title\">CARBYLAMINE TEST<\/span>\n                Only 1&deg; amines react with CHCl<sub>3<\/sub> and alc. KOH to form isocyanides (carbylamines) with an extremely foul smell.\n            <\/div>\n            <div class=\"card\">\n                <span class=\"card-title\">HINSBERG TEST<\/span>\n                Reaction with Benzenesulfonyl chloride. 1&deg; amine products are soluble in alkali; 2&deg; are insoluble; 3&deg; do not react.\n            <\/div>\n        <\/div>\n\n        <h3>Reaction with Nitrous Acid (HNO<sub>2<\/sub>)<\/h3>\n        <p>This is a very important distinguishing test discussed in every <strong>amines class 12 notes pdf<\/strong> guide:<\/p>\n        <ul>\n            <li><strong>Primary Aliphatic:<\/strong> Form Alcohols and evolve N<sub>2<\/sub> gas quantitatively.<\/li>\n            <li><strong>Primary Aromatic:<\/strong> Form stable **Diazonium Salts** at 0&minus;5&deg;C.<\/li>\n            <li><strong>Secondary:<\/strong> Form yellow oily N-nitrosamines.<\/li>\n            <li><strong>Tertiary:<\/strong> Form soluble nitrite salts.<\/li>\n        <\/ul>\n\n        <h2><div class=\"badge\">08<\/div><span>Diazonium Salts: A Versatile Intermediate<\/span><\/h2>\n        <p>Aryl diazonium salts (Ar&minus;N<sub>2<\/sub><sup>+<\/sup>X<sup>&minus;<\/sup>) are invaluable for preparing variety of aromatic compounds that cannot be made by direct substitution. They are prepared by the **Diazotization** of aniline.<\/p>\n\n        <div class=\"formula-dark\">\n            <span class=\"formula-dark-label\">SANDMEYER REACTION<\/span>\n            <div class=\"formula-dark-content\">\n                Ar&minus;N<sub>2<\/sub>Cl + Cu<sub>2<\/sub>Cl<sub>2<\/sub>\/HCl &rarr; Ar&minus;Cl + N<sub>2<\/sub>\n            <\/div>\n        <\/div>\n\n        <h3>Coupling Reactions<\/h3>\n        <p>Diazonium salts react with phenols and aromatic amines to form highly colored **Azo compounds** used as dyes. \n           Example: Benzene diazonium chloride + Phenol &rarr; p-Hydroxyazobenzene (Orange dye).<\/p>\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 Sheet<\/h3>\n            <ul>\n                <li><strong>Geometry:<\/strong> Trigonal pyramidal; sp<sup>3<\/sup> hybridized nitrogen.<\/li>\n                <li><strong>Basicity order:<\/strong> 2&deg; > 3&deg; > 1&deg; (Ethyl) and 2&deg; > 1&deg; > 3&deg; (Methyl) in water.<\/li>\n                <li><strong>Gabriel Synthesis:<\/strong> Only for aliphatic 1&deg; amines.<\/li>\n                <li><strong>Hoffmann Bromamide:<\/strong> Decreases chain length by one carbon atom.<\/li>\n                <li><strong>Carbylamine test:<\/strong> Distinguishes 1&deg; amines (foul smell).<\/li>\n                <li><strong>Aniline:<\/strong> Ortho-para directing; reacts with Br<sub>2<\/sub> water to give 2,4,6-tribromoaniline (white ppt).<\/li>\n                <li><strong>Acetylation:<\/strong> Used to protect the &minus;NH<sub>2<\/sub> group in aniline to prevent oxidation or uncontrolled substitution.<\/li>\n                <li><strong>Diazotization:<\/strong> Done at ice-cold temperature (0&minus;5&deg;C).<\/li>\n                <li><strong>Sandmeyer vs Gattermann:<\/strong> Sandmeyer uses copper salts; Gattermann uses copper powder.<\/li>\n                <li><strong>Isocyanide:<\/strong> Functional isomer of nitrile.<\/li>\n            <\/ul>\n            <a href=\"#\" class=\"download-btn\" rel=\"nofollow noopener noreferrer\">\n                <span>Download Amines Formula Sheet<\/span>\n            <\/a>\n        <\/div>\n\n        <h2><div class=\"badge\">09<\/div><span>Frequently Asked Questions<\/span><\/h2>\n        <div class=\"faq-container\">\n            <details>\n                <summary>\n                    <span>Why is Gabriel Phthalimide synthesis not used for preparing Aniline?<\/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\">Gabriel synthesis involves nucleophilic substitution (S<sub>N<\/sub>2) of an alkyl halide by the phthalimide anion. Aryl halides (like chlorobenzene) do not undergo nucleophilic substitution under normal conditions due to resonance and partial double bond character of the C-X bond, making them unsuitable for this method.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>Why are amines less acidic than alcohols of comparable mass?<\/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\">Oxygen is more electronegative than Nitrogen. Therefore, the O&minus;H bond is more polar than the N&minus;H bond, making it easier to release a proton. Additionally, the alkoxide ion (RO<sup>&minus;<\/sup>) is more stable than the amide ion (RNH<sup>&minus;<\/sup>) because the negative charge is on a more electronegative atom.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>Explain why aniline does not undergo Friedel-Crafts 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\">In a Friedel-Crafts reaction, anhydrous AlCl<sub>3<\/sub> acts as a Lewis acid catalyst. Aniline is a strong Lewis base. It reacts with AlCl<sub>3<\/sub> to form a salt. This complexation places a positive charge on the Nitrogen atom, which strongly deactivates the benzene ring, preventing further electrophilic attack.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>What is the role of acetylation in aniline nitration?<\/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\">Direct nitration of aniline using conc. HNO<sub>3<\/sub>\/H<sub>2<\/sub>SO<sub>4<\/sub> oxidizes the sensitive &minus;NH<sub>2<\/sub> group and produces a high amount of meta-nitroaniline. By converting aniline to acetanilide (acetylation), the activating effect of the amino group is reduced, protecting it from oxidation and directing nitration strictly to the para position.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>Why do 3&deg; amines have the lowest boiling point among isomeric amines?<\/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\">Boiling point depends on the strength of intermolecular forces. 1&deg; and 2&deg; amines have N&minus;H bonds that allow for extensive intermolecular hydrogen bonding. 3&deg; amines have no hydrogen attached to Nitrogen, meaning they cannot form H-bonds with themselves, resulting in much weaker dipole-dipole attractions.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>What is the product of the reaction between aniline and bromine water?<\/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\">Aniline is highly activated. When reacted with bromine water, it undergoes rapid multiple substitution at all available ortho and para positions, resulting in a white precipitate of 2,4,6-tribromoaniline.<\/div>\n            <\/details>\n        <\/div>\n\n        <div class=\"cta-section\">\n            <h2>Accelerate Your NEET ranking with KSquare<\/h2>\n            <p>Mastering Amines and their derivatives 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 Amines Class 12 Notes PDF Amines are organic derivatives of ammonia (NH3) produced by replacing one or more hydrogen atoms with alkyl or aryl groups. This amines class 12 notes pdf guide provides a deep dive into these nitrogen-containing compounds, which are fundamental to biology and industry. Amines play a crucial role [&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":[378,380,379,382,381],"class_list":["post-4045","post","type-post","status-publish","format-standard","hentry","category-free-study-material","tag-amines-chemistry-class-12-notes","tag-amines-class-12-notes-pdf","tag-aniline-reactions-class-12","tag-class-12-chemistry-amines-chapter","tag-diazonium-salts-notes-pdf"],"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\/4045","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=4045"}],"version-history":[{"count":2,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/4045\/revisions"}],"predecessor-version":[{"id":4251,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/4045\/revisions\/4251"}],"wp:attachment":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/media?parent=4045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/categories?post=4045"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/tags?post=4045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}