{"id":250790,"date":"2025-07-10T12:21:05","date_gmt":"2025-07-10T12:21:05","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=250790"},"modified":"2025-07-10T12:21:07","modified_gmt":"2025-07-10T12:21:07","slug":"what-type-of-reaction-is-shown-below","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/10\/what-type-of-reaction-is-shown-below\/","title":{"rendered":"What type of reaction is shown below"},"content":{"rendered":"\n

What type of reaction is shown below? Check all that apply. 2H2O2 \u2192 2H2O + O2<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

The reaction 2H2O2 \u2192 2H2O + O2<\/strong> is a decomposition reaction<\/strong> and it can also be considered a redox reaction<\/strong>. Let\u2019s break it down:<\/p>\n\n\n\n

1. Decomposition Reaction:<\/strong><\/h3>\n\n\n\n

In a decomposition reaction, a single reactant breaks down into two or more products. Here, hydrogen peroxide (H2O2) is decomposing into water (H2O) and oxygen (O2). This fits the definition of a decomposition reaction.<\/p>\n\n\n\n

    \n
  • Reactant:<\/strong> 2H2O2 (hydrogen peroxide)<\/li>\n\n\n\n
  • Products:<\/strong> 2H2O (water) and O2 (oxygen)<\/li>\n<\/ul>\n\n\n\n

    2. Redox (Reduction-Oxidation) Reaction:<\/strong><\/h3>\n\n\n\n

    In redox reactions, one substance undergoes oxidation (losing electrons) and another undergoes reduction (gaining electrons). In this case, hydrogen peroxide (H2O2) is both oxidized<\/strong> and reduced<\/strong>.<\/p>\n\n\n\n

      \n
    • Oxidation:<\/strong> The oxygen in H2O2 is oxidized. In hydrogen peroxide (H2O2), the oxygen is in the -1 oxidation state. As H2O2 decomposes to produce O2, the oxidation state of oxygen changes to 0 in O2, meaning it has been oxidized.<\/li>\n\n\n\n
    • Reduction:<\/strong> The hydrogen in H2O2 remains in the +1 oxidation state in both the reactant (H2O2) and product (H2O). Thus, the oxygen in H2O2 gets reduced as it forms water (H2O) where it is in the -2 oxidation state.<\/li>\n<\/ul>\n\n\n\n

      3. Exothermic Reaction:<\/strong><\/h3>\n\n\n\n

      This reaction is also exothermic<\/strong>. The breakdown of hydrogen peroxide releases energy in the form of heat. This energy release makes the reaction spontaneous under certain conditions.<\/p>\n\n\n\n

      4. Catalytic Reaction (optional context):<\/strong><\/h3>\n\n\n\n

      In some cases, the decomposition of hydrogen peroxide is catalyzed by substances like potassium iodide (KI) or manganese dioxide (MnO2). However, this is not a requirement for the reaction to occur, so while it could be catalytic in nature, it is not inherently catalytic without the presence of a catalyst.<\/p>\n\n\n\n

      Conclusion:<\/h3>\n\n\n\n

      To summarize:<\/p>\n\n\n\n

        \n
      • Decomposition Reaction<\/strong>: Because H2O2 breaks down into two products.<\/li>\n\n\n\n
      • Redox Reaction<\/strong>: Due to the oxidation and reduction of oxygen atoms.<\/li>\n\n\n\n
      • Exothermic<\/strong>: The reaction releases heat.<\/li>\n<\/ul>\n\n\n\n
        \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

        What type of reaction is shown below? Check all that apply. 2H2O2 \u2192 2H2O + O2 The Correct Answer and Explanation is: The reaction 2H2O2 \u2192 2H2O + O2 is a decomposition reaction and it can also be considered a redox reaction. Let\u2019s break it down: 1. Decomposition Reaction: In a decomposition reaction, a single […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-250790","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/250790","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=250790"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/250790\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=250790"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=250790"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=250790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}