{"id":217990,"date":"2025-05-23T05:22:50","date_gmt":"2025-05-23T05:22:50","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=217990"},"modified":"2025-05-23T05:22:53","modified_gmt":"2025-05-23T05:22:53","slug":"if-a-compound-is-reduced-what-is-the-result-6","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/23\/if-a-compound-is-reduced-what-is-the-result-6\/","title":{"rendered":"If a compound is reduced, what is the result"},"content":{"rendered":"\n

If a compound is reduced, what is the result?<\/p>\n\n\n\n

Fewer C-H bonds
Increased number of C-H bonds
Fewer C-Z bonds
Both increased number of C-H bonds and fewer C-Z bonds<\/p>\n\n\n\n

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

The correct answer is:
Both increased number of C-H bonds and fewer C-Z bonds<\/strong><\/p>\n\n\n\n

In chemistry, reduction<\/strong> refers to a process in which a molecule, atom, or ion gains electrons<\/strong> or undergoes a decrease in its oxidation state. In organic chemistry, however, the definition of reduction can be extended beyond just electron gain\u2014it also includes specific structural changes<\/strong> in a molecule, especially concerning carbon-hydrogen (C-H)<\/strong> and carbon-heteroatom (C-Z)<\/strong> bonds, where Z represents a more electronegative element (e.g., O, N, X such as halogens).<\/p>\n\n\n\n

Let\u2019s break this down into the two parts of the correct answer:<\/p>\n\n\n\n

\n\n\n\n

1. Increased Number of C-H Bonds<\/strong><\/h3>\n\n\n\n

One key indicator of reduction in organic compounds is the increase in the number of hydrogen atoms bonded to carbon<\/strong>. This means forming more C-H bonds. For example:<\/p>\n\n\n\n

    \n
  • When alkenes (C=C)<\/strong> are reduced to alkanes (C-C)<\/strong> via hydrogenation, two new C-H bonds are formed.<\/li>\n\n\n\n
  • Similarly, the reduction of carbonyl compounds<\/strong> like ketones or aldehydes to alcohols increases the number of C-H bonds.<\/li>\n<\/ul>\n\n\n\n

    This increase in C-H bonds means that the carbon is gaining hydrogen, which corresponds to a gain of electrons<\/strong>, fulfilling the fundamental definition of reduction.<\/p>\n\n\n\n

    \n\n\n\n

    2. Fewer C-Z Bonds<\/strong><\/h3>\n\n\n\n

    Reduction also commonly involves the loss of bonds to more electronegative atoms<\/strong>, such as oxygen, nitrogen, or halogens. These are known as C-Z bonds:<\/p>\n\n\n\n

      \n
    • For instance, the reduction of a carboxylic acid (-COOH)<\/strong> to a primary alcohol (-CH\u2082OH)<\/strong> involves the removal of a double bond to oxygen and replacement with hydrogen atoms.<\/li>\n\n\n\n
    • This results in fewer C-O<\/strong> or C-Cl<\/strong> bonds, which are associated with oxidation due to the withdrawal of electron density by electronegative atoms.<\/li>\n<\/ul>\n\n\n\n

      Thus, losing C-Z bonds<\/strong> (where Z is an electronegative atom) is another hallmark of reduction.<\/p>\n\n\n\n

      \n\n\n\n

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

      Both the increase in C-H bonds<\/strong> and the decrease in C-Z bonds<\/strong> reflect the movement of electron density toward the carbon atom, which constitutes reduction in an organic context. Therefore, “Both increased number of C-H bonds and fewer C-Z bonds”<\/strong> is the most comprehensive and correct answer.<\/p>\n\n\n\n

      \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

      If a compound is reduced, what is the result? Fewer C-H bondsIncreased number of C-H bondsFewer C-Z bondsBoth increased number of C-H bonds and fewer C-Z bonds The Correct Answer and Explanation is: The correct answer is:Both increased number of C-H bonds and fewer C-Z bonds In chemistry, reduction refers to a process in which […]<\/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-217990","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/217990","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=217990"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/217990\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=217990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=217990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=217990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}