{"id":10937,"date":"2026-09-26T21:58:57","date_gmt":"2026-09-26T20:58:57","guid":{"rendered":"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/"},"modified":"2026-09-26T21:58:57","modified_gmt":"2026-09-26T20:58:57","slug":"3-3-5-alcohols","status":"publish","type":"page","link":"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/","title":{"rendered":"3.3.5 Alcohols"},"content":{"rendered":"\n<div class=\"ols-aqa335-page\">\n\n  <aside class=\"ols-sidebar\">\n  <div class=\"ols-sidebar-header\">\n    <h3>Revision Notes<\/h3>\n    <p>A Level Chemistry<\/p>\n  <\/div>\n\n  <div class=\"ols-topic-group\">\n    <h4>3.3.5 Alcohols<\/h4>\n\n    <ul class=\"ols-topic-list\">\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/\">3.3.5 Overview<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/alcohols-naming-classification-and-properties\/\">Alcohols: Naming, Classification and Properties<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/producing-alcohols\/\">Producing Alcohols: Hydration, Fermentation and Biofuels<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/oxidation-of-alcohols\/\">Oxidation of Alcohols<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/reactions-of-alcohols\/\">Substitution and Elimination Reactions of Alcohols<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/preparing-and-purifying-organic-liquids\/\">Preparing and Purifying Organic Liquids<\/a>\n      <\/li>\n    <\/ul>\n  <\/div>\n\n  <div class=\"ols-topic-group\">\n    <h4>Other Sections<\/h4>\n\n    <ul class=\"ols-topic-list\">\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-3-halogenoalkanes\/\">3.3.3 Halogenoalkanes<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-6-organic-analysis\/\">3.3.6 Organic Analysis<\/a>\n      <\/li>\n      <li>\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-4-alkenes\/\">3.3.4 Alkenes<\/a>\n      <\/li>\n      <li>\n        <a 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background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #fdf4ff 0%, #d8b4fe 45%, #7e22ce 100%); }\n    .ols-aqa335-visual--gr { background: radial-gradient(circle at 24% 18%, rgba(255,255,255,0.46), transparent 24%), linear-gradient(135deg, #f0fdf4 0%, #4ade80 45%, #166534 100%); }\n  <\/style>\n\n  <!-- BREADCRUMB BAR -->\n  <div class=\"ols-aqa335-breadcrumb-bar\">\n    <div class=\"ols-aqa335-container\">\n      <nav class=\"ols-aqa335-breadcrumb\" aria-label=\"Breadcrumb\">\n          <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/\">Revision Notes<\/a> \/\n          <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/\">A Level Chemistry<\/a> \/\n          <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/\">AQA<\/a> \/\n          <span>3.3.5 Alcohols<\/span>\n        <\/nav>\n    <\/div>\n  <\/div>\n\n  <!-- INTRO -->\n  <section class=\"ols-aqa335-intro\">\n    <div class=\"ols-aqa335-container\">\n      <div class=\"ols-aqa335-intro-inner\">\n        <div>\n          <div class=\"ols-aqa335-eyebrow\">AQA A Level Chemistry<\/div>\n          <h1>3.3.5<br>Alcohols<\/h1>\n          <div class=\"ols-aqa335-accent-bar\"><\/div>\n          <p class=\"ols-aqa335-intro-lead\">Section 3.3.5 covers the production of ethanol by hydration of ethene and by fermentation, biofuels and the carbon-neutral argument, the classification of alcohols, oxidation with acidified potassium dichromate(VI) to aldehydes, carboxylic acids and ketones with the tests that distinguish them, and the acid-catalysed elimination of water to form alkenes with its mechanism. The techniques page supports required practical 5.<\/p>\n        <\/div>\n        <div class=\"ols-aqa335-info-grid\">\n          <div class=\"ols-aqa335-info-card\"><div class=\"ols-aqa335-info-card-label\">Exam Paper<\/div><div class=\"ols-aqa335-info-card-value\">Paper 2<\/div><div class=\"ols-aqa335-info-card-sub\">7405\/2<\/div><\/div>\n          <div class=\"ols-aqa335-info-card\"><div class=\"ols-aqa335-info-card-label\">Specification Points<\/div><div class=\"ols-aqa335-info-card-value\">3.3.5.1 &#8211; 3.3.5.3<\/div><div class=\"ols-aqa335-info-card-sub\">3 sections covered<\/div><\/div>\n          <div class=\"ols-aqa335-info-card\"><div class=\"ols-aqa335-info-card-label\">Topic Parts<\/div><div class=\"ols-aqa335-info-card-value\">5 pages<\/div><div class=\"ols-aqa335-info-card-sub\">Revision notes available<\/div><\/div>\n          <div class=\"ols-aqa335-info-card\"><div class=\"ols-aqa335-info-card-label\">Exam Board<\/div><div class=\"ols-aqa335-info-card-value\">AQA<\/div><div class=\"ols-aqa335-info-card-sub\">7405 (2015 onwards)<\/div><\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- TOPIC CARDS -->\n  <section class=\"ols-aqa335-topics\">\n    <div class=\"ols-aqa335-container\">\n      <div class=\"ols-aqa335-section-header\">\n        <h2 class=\"ols-aqa335-section-title\">Revision Notes<\/h2>\n        <p class=\"ols-aqa335-section-sub\">Work through 3.3.5 Alcohols in a structured sequence.<\/p>\n      <\/div>\n      <div class=\"ols-aqa335-cards-grid\">\n\n        <!-- Card 1: Alcohols: Naming, Classification and Properties -->\n        <a class=\"ols-aqa335-card ols-aqa335-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/alcohols-naming-classification-and-properties\/\">\n          <div class=\"ols-aqa335-card-img-wrap\">\n            <div class=\"ols-aqa335-visual ols-aqa335-visual--oh\">\n              <div class=\"ols-aqa335-visual-panel\">\n                <div class=\"ols-aqa335-visual-kicker\">The \u2013OH group<\/div>\n                <div class=\"ols-aqa335-visual-main\">Naming and<br>Classifying<\/div>\n                <div class=\"ols-aqa335-config-line\" aria-hidden=\"true\"><span>primary, secondary, tertiary<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"ols-aqa335-card-num\">1<\/div>\n            <span class=\"ols-aqa335-card-status ols-aqa335-card-status--available\">Available<\/span>\n          <\/div>\n          <div class=\"ols-aqa335-card-body\">\n            <p class=\"ols-aqa335-card-title\">Alcohols: Naming, Classification and Properties<\/p>\n            <p class=\"ols-aqa335-card-desc\">Alcohols: nomenclature, structural, displayed and skeletal formulae, primary, secondary and tertiary alcohols, hydrogen bonding, boiling temperatures and solubility.<\/p>\n            <span class=\"ols-aqa335-card-cta\">Start revising<svg viewBox=\"0 0 16 16\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 8h10M9 4l4 4-4 4\"><\/path><\/svg><\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 2: Producing Alcohols: Hydration, Fermentation and Biofuels -->\n        <a class=\"ols-aqa335-card ols-aqa335-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/producing-alcohols\/\">\n          <div class=\"ols-aqa335-card-img-wrap\">\n            <div class=\"ols-aqa335-visual ols-aqa335-visual--gr\">\n              <div class=\"ols-aqa335-visual-panel\">\n                <div class=\"ols-aqa335-visual-kicker\">Two routes<\/div>\n                <div class=\"ols-aqa335-visual-main\">Producing<br>Alcohols<\/div>\n                <div class=\"ols-aqa335-config-line\" aria-hidden=\"true\"><span>hydration, fermentation, biofuel<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"ols-aqa335-card-num\">2<\/div>\n            <span class=\"ols-aqa335-card-status ols-aqa335-card-status--available\">Available<\/span>\n          <\/div>\n          <div class=\"ols-aqa335-card-body\">\n            <p class=\"ols-aqa335-card-title\">Producing Alcohols: Hydration, Fermentation and Biofuels<\/p>\n            <p class=\"ols-aqa335-card-desc\">Producing ethanol: hydration of ethene, fermentation of glucose, conditions and comparison, biofuels and carbon neutrality.<\/p>\n            <span class=\"ols-aqa335-card-cta\">Start revising<svg viewBox=\"0 0 16 16\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 8h10M9 4l4 4-4 4\"><\/path><\/svg><\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 3: Oxidation of Alcohols -->\n        <a class=\"ols-aqa335-card ols-aqa335-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/oxidation-of-alcohols\/\">\n          <div class=\"ols-aqa335-card-img-wrap\">\n            <div class=\"ols-aqa335-visual ols-aqa335-visual--ox\">\n              <div class=\"ols-aqa335-visual-panel\">\n                <div class=\"ols-aqa335-visual-kicker\">Orange to green<\/div>\n                <div class=\"ols-aqa335-visual-main\">Oxidation of<br>Alcohols<\/div>\n                <div class=\"ols-aqa335-config-line\" aria-hidden=\"true\"><span>distil or reflux, [O]<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"ols-aqa335-card-num\">3<\/div>\n            <span class=\"ols-aqa335-card-status ols-aqa335-card-status--available\">Available<\/span>\n          <\/div>\n          <div class=\"ols-aqa335-card-body\">\n            <p class=\"ols-aqa335-card-title\">Oxidation of Alcohols<\/p>\n            <p class=\"ols-aqa335-card-desc\">The oxidation of alcohols: acidified dichromate(VI), aldehydes, carboxylic acids and ketones, distillation versus reflux, [O] equations and tests for aldehydes and acids.<\/p>\n            <span class=\"ols-aqa335-card-cta\">Start revising<svg viewBox=\"0 0 16 16\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 8h10M9 4l4 4-4 4\"><\/path><\/svg><\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 4: Substitution and Elimination Reactions of Alcohols -->\n        <a class=\"ols-aqa335-card ols-aqa335-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/reactions-of-alcohols\/\">\n          <div class=\"ols-aqa335-card-img-wrap\">\n            <div class=\"ols-aqa335-visual ols-aqa335-visual--rc\">\n              <div class=\"ols-aqa335-visual-panel\">\n                <div class=\"ols-aqa335-visual-kicker\">Reaction map<\/div>\n                <div class=\"ols-aqa335-visual-main\">Reactions of<br>Alcohols<\/div>\n                <div class=\"ols-aqa335-config-line\" aria-hidden=\"true\"><span>PCl\u2085, HBr, P\/I\u2082, dehydration<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"ols-aqa335-card-num\">4<\/div>\n            <span class=\"ols-aqa335-card-status ols-aqa335-card-status--available\">Available<\/span>\n          <\/div>\n          <div class=\"ols-aqa335-card-body\">\n            <p class=\"ols-aqa335-card-title\">Substitution and Elimination Reactions of Alcohols<\/p>\n            <p class=\"ols-aqa335-card-desc\">Reactions of alcohols: combustion, halogenation with PCl\u2085, KBr and sulfuric acid, and red phosphorus and iodine, and dehydration to alkenes.<\/p>\n            <span class=\"ols-aqa335-card-cta\">Start revising<svg viewBox=\"0 0 16 16\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 8h10M9 4l4 4-4 4\"><\/path><\/svg><\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 5: Preparing and Purifying Organic Liquids -->\n        <a class=\"ols-aqa335-card ols-aqa335-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/preparing-and-purifying-organic-liquids\/\">\n          <div class=\"ols-aqa335-card-img-wrap\">\n            <div class=\"ols-aqa335-visual ols-aqa335-visual--tc\">\n              <div class=\"ols-aqa335-visual-panel\">\n                <div class=\"ols-aqa335-visual-kicker\">Practical skills<\/div>\n                <div class=\"ols-aqa335-visual-main\">Preparing and<br>Purifying<\/div>\n                <div class=\"ols-aqa335-config-line\" aria-hidden=\"true\"><span>reflux, distil, separate, dry<\/span><\/div>\n              <\/div>\n            <\/div>\n            <div class=\"ols-aqa335-card-num\">5<\/div>\n            <span class=\"ols-aqa335-card-status ols-aqa335-card-status--available\">Available<\/span>\n          <\/div>\n          <div class=\"ols-aqa335-card-body\">\n            <p class=\"ols-aqa335-card-title\">Preparing and Purifying Organic Liquids<\/p>\n            <p class=\"ols-aqa335-card-desc\">Preparing and purifying organic liquids: reflux, distillation, separating funnel, drying agents, boiling temperature and percentage yield.<\/p>\n            <span class=\"ols-aqa335-card-cta\">Start revising<svg viewBox=\"0 0 16 16\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M3 8h10M9 4l4 4-4 4\"><\/path><\/svg><\/span>\n          <\/div>\n        <\/a>\n\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- SPECIFICATION -->\n  <section class=\"ols-aqa335-spec-section\">\n    <div class=\"ols-aqa335-container\">\n      <div class=\"ols-aqa335-spec-wrap\">\n        <div class=\"ols-aqa335-spec-pill\">Specification Coverage<\/div>\n        <h2 class=\"ols-aqa335-spec-heading\">3.3.5 Alcohols &#8211; AQA A Level Chemistry<\/h2>\n        <p class=\"ols-aqa335-spec-intro-text\">The following AQA specification points outline the knowledge and skills students are expected to demonstrate. Wording follows the AQA A Level Chemistry (7405) specification.<\/p>\n        <h3 class=\"ols-aqa335-spec-group-title\">3.3.5.1 Alcohol production<\/h3>\n        <div class=\"ols-aqa335-spec-rows\">\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--light\"><div class=\"ols-aqa335-spec-code\">3.3.5.1i<\/div><div class=\"ols-aqa335-spec-text\">know that alcohols are produced industrially by hydration of alkenes in the presence of an acid catalyst<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--mid\"><div class=\"ols-aqa335-spec-code ols-aqa335-spec-code--mid\">3.3.5.1ii<\/div><div class=\"ols-aqa335-spec-text\">know that ethanol is produced industrially by fermentation of glucose and know the conditions for this process<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--light\"><div class=\"ols-aqa335-spec-code\">3.3.5.1iii<\/div><div class=\"ols-aqa335-spec-text\">know that ethanol from fermentation is separated by fractional distillation and can be used as a biofuel<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--mid\"><div class=\"ols-aqa335-spec-code ols-aqa335-spec-code--mid\">3.3.5.1iv<\/div><div class=\"ols-aqa335-spec-text\">explain the meaning of the term biofuel<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--light\"><div class=\"ols-aqa335-spec-code\">3.3.5.1v<\/div><div class=\"ols-aqa335-spec-text\">justify the conditions used in the production of ethanol by fermentation of glucose<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--mid\"><div class=\"ols-aqa335-spec-code ols-aqa335-spec-code--mid\">3.3.5.1vi-a<\/div><div class=\"ols-aqa335-spec-text\">write equations to support the statement that ethanol produced by fermentation is a carbon neutral fuel<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--light\"><div class=\"ols-aqa335-spec-code\">3.3.5.1vi-b<\/div><div class=\"ols-aqa335-spec-text\">give reasons why the statement that ethanol produced by fermentation is a carbon neutral fuel is not valid<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--mid\"><div class=\"ols-aqa335-spec-code ols-aqa335-spec-code--mid\">3.3.5.1vii<\/div><div class=\"ols-aqa335-spec-text\">outline the mechanism for the formation of an alcohol by the reaction of an alkene with steam in the presence of an acid catalyst<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--light\"><div class=\"ols-aqa335-spec-code\">3.3.5.1viii<\/div><div class=\"ols-aqa335-spec-text\">discuss the environmental and ethical issues linked to decision making about biofuel use<\/div><\/div>\n        <\/div>\n\n        <h3 class=\"ols-aqa335-spec-group-title\">3.3.5.2 Oxidation of alcohols<\/h3>\n        <div class=\"ols-aqa335-spec-rows\">\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--mid\"><div class=\"ols-aqa335-spec-code ols-aqa335-spec-code--mid\">3.3.5.2i<\/div><div class=\"ols-aqa335-spec-text\">know that alcohols are classified as primary, secondary and tertiary<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--light\"><div class=\"ols-aqa335-spec-code\">3.3.5.2ii-a<\/div><div class=\"ols-aqa335-spec-text\">know that primary alcohols can be oxidised to aldehydes<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--mid\"><div class=\"ols-aqa335-spec-code ols-aqa335-spec-code--mid\">3.3.5.2ii-b<\/div><div class=\"ols-aqa335-spec-text\">know that aldehydes from primary alcohols can be further oxidised to carboxylic acids<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--light\"><div class=\"ols-aqa335-spec-code\">3.3.5.2iii<\/div><div class=\"ols-aqa335-spec-text\">know that secondary alcohols can be oxidised to ketones<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--mid\"><div class=\"ols-aqa335-spec-code ols-aqa335-spec-code--mid\">3.3.5.2iv<\/div><div class=\"ols-aqa335-spec-text\">know that tertiary alcohols are not easily oxidised<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--light\"><div class=\"ols-aqa335-spec-code\">3.3.5.2v<\/div><div class=\"ols-aqa335-spec-text\">know that acidified potassium dichromate(VI) is a suitable oxidising agent for alcohols<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--mid\"><div class=\"ols-aqa335-spec-code ols-aqa335-spec-code--mid\">3.3.5.2vi<\/div><div class=\"ols-aqa335-spec-text\">write equations for oxidation reactions of alcohols using [O] as oxidant<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--light\"><div class=\"ols-aqa335-spec-code\">3.3.5.2vii<\/div><div class=\"ols-aqa335-spec-text\">explain how the method used to oxidise a primary alcohol determines whether an aldehyde or carboxylic acid is obtained<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--mid\"><div class=\"ols-aqa335-spec-code ols-aqa335-spec-code--mid\">3.3.5.2viii-a<\/div><div class=\"ols-aqa335-spec-text\">use Fehling&#8217;s solution to distinguish between aldehydes and ketones<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--light\"><div class=\"ols-aqa335-spec-code\">3.3.5.2viii-b<\/div><div class=\"ols-aqa335-spec-text\">use Tollens&#8217; reagent to distinguish between aldehydes and ketones<\/div><\/div>\n        <\/div>\n\n        <h3 class=\"ols-aqa335-spec-group-title\">3.3.5.3 Elimination<\/h3>\n        <div class=\"ols-aqa335-spec-rows\">\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--mid\"><div class=\"ols-aqa335-spec-code ols-aqa335-spec-code--mid\">3.3.5.3i<\/div><div class=\"ols-aqa335-spec-text\">know that alkenes can be formed from alcohols by acid-catalysed elimination reactions<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--light\"><div class=\"ols-aqa335-spec-code\">3.3.5.3ii<\/div><div class=\"ols-aqa335-spec-text\">know that alkenes produced this way can be used to produce addition polymers without monomers derived from crude oil<\/div><\/div>\n          <div class=\"ols-aqa335-spec-row ols-aqa335-spec-row--mid\"><div class=\"ols-aqa335-spec-code ols-aqa335-spec-code--mid\">3.3.5.3iii<\/div><div class=\"ols-aqa335-spec-text\">outline the mechanism for the elimination of water from alcohols<\/div><\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"CollectionPage\",\n      \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/aqa\/3-3-5-alcohols\/#webpage\",\n      \"url\": 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