{"id":208524,"date":"2025-04-27T18:41:02","date_gmt":"2025-04-27T18:41:02","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=208524"},"modified":"2025-04-27T18:41:05","modified_gmt":"2025-04-27T18:41:05","slug":"if-a-compound-is-reduced","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/04\/27\/if-a-compound-is-reduced\/","title":{"rendered":"If a compound is reduced"},"content":{"rendered":"\n<p>If a compound is reduced, what is the result?<\/p>\n\n\n\n<p>Fewer C-H bonds<br>Increased number of C-H bonds<br>Fewer C-Z bonds<br>Both increased number of C-H bonds and fewer C-Z bonds<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The correct answer is:<br><strong>Both increased number of C-H bonds and fewer C-Z bonds.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Detailed Explanation (300+ words):<\/h3>\n\n\n\n<p>In chemistry, <strong>reduction<\/strong> refers to a process where a molecule gains electrons. In organic chemistry specifically, reduction usually involves <strong>increasing the number of carbon-hydrogen (C-H) bonds<\/strong> or <strong>decreasing the number of bonds between carbon and more electronegative atoms<\/strong>, such as oxygen (O), nitrogen (N), or halogens (Z represents a generic electronegative atom).<\/p>\n\n\n\n<p>Let&#8217;s break it down:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Increased number of C-H bonds:<\/strong><br>When a compound is reduced, hydrogen atoms are often added to it. For example, when an alkene (a molecule with a carbon-carbon double bond) is reduced (such as by hydrogenation), it becomes an alkane (a molecule with more carbon-hydrogen bonds). This is because hydrogen atoms are added across the double bond, creating more C-H bonds. Thus, the number of C-H bonds increases during reduction. Example:<br>[<br>CH_2=CH_2 \\quad (Ethene) \\quad \\xrightarrow{H_2} \\quad CH_3-CH_3 \\quad (Ethane)<br>]<\/li>\n\n\n\n<li><strong>Fewer C-Z bonds:<\/strong><br>Reduction often removes bonds between carbon and electronegative atoms (Z), such as oxygen in carbonyl groups (C=O) or halides (C-X bonds where X = Cl, Br, I). Removing a bond to a more electronegative atom effectively adds electrons to the carbon, making it more reduced. Example:<br>Reduction of a carbonyl group (C=O) to an alcohol (C-OH) reduces the carbon because the double bond to oxygen (an electronegative atom) is broken and replaced with a C-H bond (in some reductions) or at least reduces the bond order (as in C-OH). [<br>R-CHO \\quad (Aldehyde) \\quad \\xrightarrow{[H]} \\quad R-CH_2OH \\quad (Primary\\ Alcohol)<br>]<\/li>\n<\/ol>\n\n\n\n<p><strong>Summary:<\/strong><br>Reduction in organic compounds generally results in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>More C-H bonds<\/strong> (more hydrogen added to carbon).<\/li>\n\n\n\n<li><strong>Fewer C-Z bonds<\/strong> (less bonding to electronegative atoms like O, N, or halogens).<\/li>\n<\/ul>\n\n\n\n<p>Both happen because adding hydrogen or removing bonds to electronegative elements effectively <strong>gives carbon more electron density<\/strong>, which is the essence of a &#8220;reduction&#8221; process.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>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. Detailed Explanation (300+ words): In chemistry, reduction refers [&hellip;]<\/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-208524","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208524","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=208524"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/208524\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=208524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=208524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=208524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}