{"id":4332,"date":"2026-05-26T06:56:14","date_gmt":"2026-05-26T05:56:14","guid":{"rendered":"https:\/\/www.onlinelearningsystem.net\/xyz\/?page_id=4332"},"modified":"2026-10-14T09:04:50","modified_gmt":"2026-10-14T08:04:50","slug":"reactions-of-alkenes","status":"publish","type":"page","link":"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/","title":{"rendered":"Reactions of Alkenes"},"content":{"rendered":"\n<div class=\"ols-t5-page\">\n\n  <aside class=\"ols-sidebar\">\r\n  <div class=\"ols-sidebar-header\">\r\n    <h3>Revision Notes<\/h3>\r\n    <p>A Level Chemistry<\/p>\r\n  <\/div>\r\n\r\n  <div class=\"ols-topic-group\">\r\n    <h4>Topic 5 Alkenes<\/h4>\r\n\r\n    <ul class=\"ols-topic-list\">\r\n      <li>\r\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/alkene-bonding\/\">Alkene Bonding<\/a>\r\n      <\/li>\r\n      <li>\r\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/geometric-isomerism\/\">Geometric Isomerism<\/a>\r\n      <\/li>\r\n      <li>\r\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/electrophilic-addition-mechanism\/\">Electrophilic Addition Mechanism<\/a>\r\n      <\/li>\r\n      <li>\r\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/\">Reactions of Alkenes<\/a>\r\n\r\n        <ul class=\"ols-subtopic-list\">\r\n          <li>\r\n            <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/halogens\/\">Halogens<\/a>\r\n          <\/li>\r\n          <li>\r\n            <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/hydrogen-halide\/\">Hydrogen Halide<\/a>\r\n          <\/li>\r\n          <li>\r\n            <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/bromine-water\/\">Bromine Water<\/a>\r\n          <\/li>\r\n          <li>\r\n            <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/hydrogen\/\">Hydrogen<\/a>\r\n          <\/li>\r\n          <li>\r\n            <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/steam\/\">Steam<\/a>\r\n          <\/li>\r\n          <li>\r\n            <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/kmno4\/\">KMnO4<\/a>\r\n          <\/li>\r\n        <\/ul>\r\n      <\/li>\r\n      <li>\r\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/polymerisation-reactions\/\">Polymerisation Reactions<\/a>\r\n      <\/li>\r\n      <li>\r\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/polymer-waste\/\">Polymer Waste<\/a>\r\n      <\/li>\r\n    <\/ul>\r\n  <\/div>\r\n\r\n  <div class=\"ols-topic-group\">\r\n    <h4>Next Topics<\/h4>\r\n\r\n    <ul class=\"ols-topic-list\">\r\n      <li>\r\n        <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-6-energetics\/\">Energetics<\/a>\r\n      <\/li>\r\n     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margin-top: 10px;\n    }\n\n    .ols-t5-spec-mob-sub-row {\n      background: #ffffff;\n      border: 1px solid rgba(70, 127, 247, 0.15);\n      border-radius: 12px;\n      overflow: hidden;\n    }\n\n    .ols-t5-spec-mob-sub-code {\n      background: #93b5f8;\n      color: #0c2060;\n      font-size: 13px;\n      font-weight: 800;\n      text-align: center;\n      height: 30px;\n      line-height: 30px;\n    }\n\n    .ols-t5-spec-mob-sub-text {\n      padding: 12px 16px;\n      font-size: 14px;\n      font-weight: 300;\n      line-height: 1.8;\n      color: #4b5563;\n    }\n\n    \/* =========================================================\n       RESPONSIVE\n    ========================================================= *\/\n\n    @media (max-width: 1024px) {\n      .ols-t5-cards-grid {\n        grid-template-columns: repeat(2, minmax(0, 1fr));\n      }\n    }\n\n    @media (max-width: 860px) {\n      .ols-t5-intro-inner {\n        grid-template-columns: 1fr;\n        gap: 40px;\n      }\n    }\n\n    @media (max-width: 640px) {\n      .ols-t5-intro {\n        padding: 24px 0 52px;\n      }\n\n      .ols-t5-topics {\n        padding: 52px 0 58px;\n      }\n\n      .ols-t5-cards-grid {\n        grid-template-columns: 1fr;\n        gap: 14px;\n      }\n\n      .ols-t5-spec-section {\n        padding: 52px 0 64px;\n      }\n\n      .ols-t5-spec-wrap {\n        padding: 24px 18px;\n        border-radius: 20px;\n      }\n\n      .ols-t5-info-grid {\n        grid-template-columns: 1fr 1fr;\n      }\n    }\n\n  <\/style>\n\n  <!-- BREADCRUMB BAR - sits above everything -->\n  <div class=\"ols-t5-breadcrumb-bar\">\n    <div class=\"ols-t5-container\">\n      <nav class=\"ols-t5-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\/edexcel-international\/\">Edexcel International<\/a> \/\n      <a href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/\">Topic 5 Alkenes<\/a> \/\n      <span>Reactions of Alkenes<\/span>\n    <\/nav>\n    <\/div>\n  <\/div>\n\n  <!-- INTRO -->\n  <section class=\"ols-t5-intro\">\n    <div class=\"ols-t5-container\">\n      <div class=\"ols-t5-intro-inner\">\n\n        <div>\n          <div class=\"ols-t5-eyebrow\">Edexcel International A Level Chemistry<\/div>\n          <h1>Reactions of Alkenes<\/h1>\n          <div class=\"ols-t5-accent-bar\"><\/div>\n          <p class=\"ols-t5-intro-lead\">\n            Alkenes react because the C=C double bond contains an exposed pi bond with high electron density. These pages separate the key alkene reactions so that students can revise the reagent, conditions, observations and products for each pathway.\n          <\/p>\n        <\/div>\n\n        <div class=\"ols-t5-info-grid\">\n          <div class=\"ols-t5-info-card\">\n            <div class=\"ols-t5-info-card-label\">Exam Unit<\/div>\n            <div class=\"ols-t5-info-card-value\">Unit 1<\/div>\n            <div class=\"ols-t5-info-card-sub\">WCH11\/01 &#8211; IAS<\/div>\n          <\/div>\n          <div class=\"ols-t5-info-card\">\n            <div class=\"ols-t5-info-card-label\">Specification Points<\/div>\n            <div class=\"ols-t5-info-card-value\">5.4 &#8211; 5.6<\/div>\n            <div class=\"ols-t5-info-card-sub\">3 points covered<\/div>\n          <\/div>\n          <div class=\"ols-t5-info-card\">\n            <div class=\"ols-t5-info-card-label\">Sub-topics<\/div>\n            <div class=\"ols-t5-info-card-value\">6 lessons<\/div>\n            <div class=\"ols-t5-info-card-sub\">Revision notes available<\/div>\n          <\/div>\n          <div class=\"ols-t5-info-card\">\n            <div class=\"ols-t5-info-card-label\">Exam Board<\/div>\n            <div class=\"ols-t5-info-card-value\">Edexcel IAL<\/div>\n            <div class=\"ols-t5-info-card-sub\">Pearson International<\/div>\n          <\/div>\n        <\/div>\n\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- TOPIC CARDS -->\n  <section class=\"ols-t5-topics\">\n    <div class=\"ols-t5-container\">\n\n      <div class=\"ols-t5-section-header\">\n        <h2 class=\"ols-t5-section-title\">Revision Notes<\/h2>\n      <\/div>\n\n      <div class=\"ols-t5-cards-grid\">\n\n        <!-- Card 1: Halogens -->\n        <a class=\"ols-t5-card ols-t5-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/halogens\/\">\n          <div class=\"ols-t5-card-img-wrap\">\n            <div class=\"ols-t5-visual ols-t5-visual--bonding\">\n              <div class=\"ols-t5-visual-panel\">\n                  <div class=\"ols-t5-visual-kicker\">Reactions of Alkenes<\/div>\n                  <div class=\"ols-t5-visual-main\">Halogens<\/div>\n                  <div class=\"ols-t5-visual-sub\">dihalogenoalkanes from Br\u2082 and Cl\u2082<\/div>\n                <\/div>\n            <\/div>\n            <div class=\"ols-t5-card-num\">1<\/div>\n          <\/div>\n          <div class=\"ols-t5-card-body\">\n            <p class=\"ols-t5-card-title\">Halogens<\/p>\n            <p class=\"ols-t5-card-desc\">Revise addition of halogens to alkenes and how dihalogenoalkanes form across the carbon-carbon double bond.<\/p>\n            <span class=\"ols-t5-card-cta\">\n              Start revising\n              <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>\n            <\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 2: Hydrogen Halide -->\n        <a class=\"ols-t5-card ols-t5-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/hydrogen-halide\/\">\n          <div class=\"ols-t5-card-img-wrap\">\n            <div class=\"ols-t5-visual ols-t5-visual--isomerism\">\n              <div class=\"ols-t5-visual-panel\">\n                  <div class=\"ols-t5-visual-kicker\">Reactions of Alkenes<\/div>\n                  <div class=\"ols-t5-visual-main\">Hydrogen Halide<\/div>\n                  <div class=\"ols-t5-visual-sub\">hydrogen halides add across the C=C bond<\/div>\n                <\/div>\n            <\/div>\n            <div class=\"ols-t5-card-num\">2<\/div>\n          <\/div>\n          <div class=\"ols-t5-card-body\">\n            <p class=\"ols-t5-card-title\">Hydrogen Halide<\/p>\n            <p class=\"ols-t5-card-desc\">Learn how hydrogen halides add to alkenes to form halogenoalkanes, including the importance of the C=C bond.<\/p>\n            <span class=\"ols-t5-card-cta\">\n              Start revising\n              <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>\n            <\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 3: Bromine Water -->\n        <a class=\"ols-t5-card ols-t5-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/bromine-water\/\">\n          <div class=\"ols-t5-card-img-wrap\">\n            <div class=\"ols-t5-visual ols-t5-visual--mechanism\">\n              <div class=\"ols-t5-visual-panel\">\n                  <div class=\"ols-t5-visual-kicker\">Reactions of Alkenes<\/div>\n                  <div class=\"ols-t5-visual-main\">Bromine Water<\/div>\n                  <div class=\"ols-t5-visual-sub\">bromine water test for C=C<\/div>\n                <\/div>\n            <\/div>\n            <div class=\"ols-t5-card-num\">3<\/div>\n          <\/div>\n          <div class=\"ols-t5-card-body\">\n            <p class=\"ols-t5-card-title\">Bromine Water<\/p>\n            <p class=\"ols-t5-card-desc\">Revise the chemical test for alkenes, including the colour change when bromine water reacts with a C=C bond.<\/p>\n            <span class=\"ols-t5-card-cta\">\n              Start revising\n              <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>\n            <\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 4: Hydrogen -->\n        <a class=\"ols-t5-card ols-t5-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/hydrogen\/\">\n          <div class=\"ols-t5-card-img-wrap\">\n            <div class=\"ols-t5-visual ols-t5-visual--reactions\">\n              <div class=\"ols-t5-visual-panel\">\n                  <div class=\"ols-t5-visual-kicker\">Reactions of Alkenes<\/div>\n                  <div class=\"ols-t5-visual-main\">Hydrogen<\/div>\n                  <div class=\"ols-t5-visual-sub\">hydrogenation with a nickel catalyst<\/div>\n                <\/div>\n            <\/div>\n            <div class=\"ols-t5-card-num\">4<\/div>\n          <\/div>\n          <div class=\"ols-t5-card-body\">\n            <p class=\"ols-t5-card-title\">Hydrogen<\/p>\n            <p class=\"ols-t5-card-desc\">Learn how hydrogenation converts alkenes into alkanes by adding hydrogen across the double bond.<\/p>\n            <span class=\"ols-t5-card-cta\">\n              Start revising\n              <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>\n            <\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 5: Steam -->\n        <a class=\"ols-t5-card ols-t5-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/steam\/\">\n          <div class=\"ols-t5-card-img-wrap\">\n            <div class=\"ols-t5-visual ols-t5-visual--polymerisation\">\n              <div class=\"ols-t5-visual-panel\">\n                  <div class=\"ols-t5-visual-kicker\">Reactions of Alkenes<\/div>\n                  <div class=\"ols-t5-visual-main\">Steam<\/div>\n                  <div class=\"ols-t5-visual-sub\">steam and an acid catalyst give alcohols<\/div>\n                <\/div>\n            <\/div>\n            <div class=\"ols-t5-card-num\">5<\/div>\n          <\/div>\n          <div class=\"ols-t5-card-body\">\n            <p class=\"ols-t5-card-title\">Steam<\/p>\n            <p class=\"ols-t5-card-desc\">Revise hydration of alkenes and how steam is used to produce alcohols under suitable conditions.<\/p>\n            <span class=\"ols-t5-card-cta\">\n              Start revising\n              <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>\n            <\/span>\n          <\/div>\n        <\/a>\n\n        <!-- Card 6: KMnO\u2084 -->\n        <a class=\"ols-t5-card ols-t5-card--available\" href=\"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/kmno4\/\">\n          <div class=\"ols-t5-card-img-wrap\">\n            <div class=\"ols-t5-visual ols-t5-visual--waste\">\n              <div class=\"ols-t5-visual-panel\">\n                  <div class=\"ols-t5-visual-kicker\">Reactions of Alkenes<\/div>\n                  <div class=\"ols-t5-visual-main\">KMnO\u2084<\/div>\n                  <div class=\"ols-t5-visual-sub\">diols from acidified KMnO\u2084<\/div>\n                <\/div>\n            <\/div>\n            <div class=\"ols-t5-card-num\">6<\/div>\n          <\/div>\n          <div class=\"ols-t5-card-body\">\n            <p class=\"ols-t5-card-title\">KMnO\u2084<\/p>\n            <p class=\"ols-t5-card-desc\">Review oxidation of alkenes with potassium manganate(VII), including the key reagent and expected test observations.<\/p>\n            <span class=\"ols-t5-card-cta\">\n              Start revising\n              <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>\n            <\/span>\n          <\/div>\n        <\/a>\n\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- SPECIFICATION -->\n  \n<section class=\"ols-t5-spec-section\">\n    <div class=\"ols-t5-container\">\n\n      <!-- DESKTOP SPECIFICATION -->\n      <div class=\"ols-t5-spec-desktop\">\n        <div class=\"ols-t5-spec-wrap\">\n          <div class=\"ols-t5-spec-pill\">Specification Coverage<\/div>\n          <h2 class=\"ols-t5-spec-heading\">Reactions of Alkenes &#8211; Edexcel International A Level Chemistry<\/h2>\n          <p class=\"ols-t5-spec-intro-text\">The following specification points outline the knowledge and skills students are expected to demonstrate for Topic 5.<\/p>\n\n          <div class=\"ols-t5-spec-rows\">\n\n            \n\n            \n\n            \n\n            <div class=\"ols-t5-spec-row ols-t5-spec-row--mid\">\n              <div class=\"ols-t5-spec-code ols-t5-spec-code--mid\">5.4<\/div>\n              <div class=\"ols-t5-spec-text\">\n                <div style=\"margin:0 0 12px;\">be able to describe the reactions of alkenes, limited to:<\/div>\n                <div class=\"ols-t5-spec-sub-list\">\n                  <div class=\"ols-t5-spec-sub-row\">\n                    <div class=\"ols-t5-spec-sub-code\">i<\/div>\n                    <div class=\"ols-t5-spec-sub-text\">the addition of hydrogen, using a nickel catalyst, to form an alkane<\/div>\n                  <\/div>\n                  <div class=\"ols-t5-spec-sub-row\">\n                    <div class=\"ols-t5-spec-sub-code\">ii<\/div>\n                    <div class=\"ols-t5-spec-sub-text\">the addition of halogens to produce a di-substituted halogenoalkane<\/div>\n                  <\/div>\n                  <div class=\"ols-t5-spec-sub-row\">\n                    <div class=\"ols-t5-spec-sub-code\">iii<\/div>\n                    <div class=\"ols-t5-spec-sub-text\">the addition of hydrogen halides to produce mono-substituted halogenoalkanes<\/div>\n                  <\/div>\n                  <div class=\"ols-t5-spec-sub-row\">\n                    <div class=\"ols-t5-spec-sub-code\">iv<\/div>\n                    <div class=\"ols-t5-spec-sub-text\">the addition of steam, in the presence of an acid catalyst, to produce alcohols<\/div>\n                  <\/div>\n                  <div class=\"ols-t5-spec-sub-row\">\n                    <div class=\"ols-t5-spec-sub-code\">v<\/div>\n                    <div class=\"ols-t5-spec-sub-text\">oxidation of the double bond by acidified potassium manganate(VII) to produce a diol<\/div>\n                  <\/div>\n                <\/div>\n              <\/div>\n            <\/div>\n\n            <div class=\"ols-t5-spec-row ols-t5-spec-row--light\">\n              <div class=\"ols-t5-spec-code ols-t5-spec-code--dark\">5.5<\/div>\n              <div class=\"ols-t5-spec-text\">know the qualitative test for a C=C double bond using bromine or bromine water<\/div>\n            <\/div>\n\n            <div class=\"ols-t5-spec-row ols-t5-spec-row--mid\">\n              <div class=\"ols-t5-spec-code ols-t5-spec-code--mid\">5.6<\/div>\n              <div class=\"ols-t5-spec-text\">\n                <div style=\"margin:0 0 12px;\">be able to describe the mechanism (including diagrams), giving evidence where possible, of:<\/div>\n                <div class=\"ols-t5-spec-sub-list\">\n                  <div class=\"ols-t5-spec-sub-row\">\n                    <div class=\"ols-t5-spec-sub-code\">i<\/div>\n                    <div class=\"ols-t5-spec-sub-text\">the electrophilic addition of bromine and hydrogen bromide to ethene<\/div>\n                  <\/div>\n                  <div class=\"ols-t5-spec-sub-row\">\n                    <div class=\"ols-t5-spec-sub-code\">ii<\/div>\n                    <div class=\"ols-t5-spec-sub-text\">the electrophilic addition of hydrogen bromide to propene<\/div>\n                  <\/div>\n                <\/div>\n                <div class=\"ols-t5-spec-note\">Use of the curly arrow notation is expected. The curly arrows should start from either a bond or from a lone pair of electrons. Knowledge of primary, secondary and tertiary carbocation stability is expected.<\/div>\n              <\/div>\n            <\/div>\n\n            \n\n            \n\n          <\/div>\n        <\/div>\n      <\/div>\n\n      <!-- MOBILE SPECIFICATION -->\n      <div class=\"ols-t5-spec-mobile\">\n        <div class=\"ols-t5-spec-wrap\">\n          <div class=\"ols-t5-spec-pill\">Specification Coverage<\/div>\n          <h2 class=\"ols-t5-spec-heading\">Reactions of Alkenes &#8211; Edexcel International A Level Chemistry<\/h2>\n          <p class=\"ols-t5-spec-intro-text\">The following specification points outline the knowledge and skills students are expected to demonstrate for Topic 5.<\/p>\n\n          <div class=\"ols-t5-spec-mob-rows\">\n\n            \n\n            \n\n            \n\n            <div class=\"ols-t5-spec-mob-row ols-t5-spec-mob-row--mid\">\n              <div class=\"ols-t5-spec-mob-code ols-t5-spec-mob-code--mid\">5.4<\/div>\n              <div class=\"ols-t5-spec-mob-text\">\n                <div style=\"margin:0 0 10px;\">be able to describe the reactions of alkenes, limited to:<\/div>\n                <div class=\"ols-t5-spec-mob-sub-list\">\n                  <div class=\"ols-t5-spec-mob-sub-row\">\n                    <div class=\"ols-t5-spec-mob-sub-code\">i<\/div>\n                    <div class=\"ols-t5-spec-mob-sub-text\">the addition of hydrogen, using a nickel catalyst, to form an alkane<\/div>\n                  <\/div>\n                  <div class=\"ols-t5-spec-mob-sub-row\">\n                    <div class=\"ols-t5-spec-mob-sub-code\">ii<\/div>\n                    <div class=\"ols-t5-spec-mob-sub-text\">the addition of halogens to produce a di-substituted halogenoalkane<\/div>\n                  <\/div>\n                  <div class=\"ols-t5-spec-mob-sub-row\">\n                    <div class=\"ols-t5-spec-mob-sub-code\">iii<\/div>\n                    <div class=\"ols-t5-spec-mob-sub-text\">the addition of hydrogen halides to produce mono-substituted halogenoalkanes<\/div>\n                  <\/div>\n                  <div class=\"ols-t5-spec-mob-sub-row\">\n                    <div class=\"ols-t5-spec-mob-sub-code\">iv<\/div>\n                    <div class=\"ols-t5-spec-mob-sub-text\">the addition of steam, in the presence of an acid catalyst, to produce alcohols<\/div>\n                  <\/div>\n                  <div class=\"ols-t5-spec-mob-sub-row\">\n                    <div class=\"ols-t5-spec-mob-sub-code\">v<\/div>\n                    <div class=\"ols-t5-spec-mob-sub-text\">oxidation of the double bond by acidified potassium manganate(VII) to produce a diol<\/div>\n                  <\/div>\n                <\/div>\n              <\/div>\n            <\/div>\n\n            <div class=\"ols-t5-spec-mob-row ols-t5-spec-mob-row--light\">\n              <div class=\"ols-t5-spec-mob-code\">5.5<\/div>\n              <div class=\"ols-t5-spec-mob-text\">know the qualitative test for a C=C double bond using bromine or bromine water<\/div>\n            <\/div>\n\n            <div class=\"ols-t5-spec-mob-row ols-t5-spec-mob-row--mid\">\n              <div class=\"ols-t5-spec-mob-code ols-t5-spec-mob-code--mid\">5.6<\/div>\n              <div class=\"ols-t5-spec-mob-text\">\n                <div style=\"margin:0 0 10px;\">be able to describe the mechanism (including diagrams), giving evidence where possible, of:<\/div>\n                <div class=\"ols-t5-spec-mob-sub-list\">\n                  <div class=\"ols-t5-spec-mob-sub-row\">\n                    <div class=\"ols-t5-spec-mob-sub-code\">i<\/div>\n                    <div class=\"ols-t5-spec-mob-sub-text\">the electrophilic addition of bromine and hydrogen bromide to ethene<\/div>\n                  <\/div>\n                  <div class=\"ols-t5-spec-mob-sub-row\">\n                    <div class=\"ols-t5-spec-mob-sub-code\">ii<\/div>\n                    <div class=\"ols-t5-spec-mob-sub-text\">the electrophilic addition of hydrogen bromide to propene<\/div>\n                  <\/div>\n                <\/div>\n                <div class=\"ols-t5-spec-note\" style=\"margin-top:10px;\">Use of the curly arrow notation is expected. Knowledge of primary, secondary and tertiary carbocation stability is expected.<\/div>\n              <\/div>\n            <\/div>\n\n            \n\n            \n\n          <\/div>\n        <\/div>\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"WebPage\",\n      \"@id\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/#webpage\",\n      \"url\": \"https:\/\/www.onlinelearningsystem.net\/xyz\/revision-notes\/a-level-chemistry\/edexcel-international\/topic-5-alkenes\/reactions-of-alkenes\/\",\n      \"name\": \"Reactions of Alkenes\",\n      \"inLanguage\": \"en-GB\",\n      \"breadcrumb\": {\n        \"@id\": 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These pages separate the key alkene reactions so that students can revise the reagent, [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"parent":3113,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4332","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/4332","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/comments?post=4332"}],"version-history":[{"count":0,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/4332\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/pages\/3113"}],"wp:attachment":[{"href":"https:\/\/www.onlinelearningsystem.net\/xyz\/wp-json\/wp\/v2\/media?parent=4332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}