{"id":47902,"date":"2025-07-02T17:03:11","date_gmt":"2025-07-02T17:03:11","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=47902"},"modified":"2025-07-02T17:21:10","modified_gmt":"2025-07-02T17:21:10","slug":"consider-the-structure","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/consider-the-structure\/","title":{"rendered":"Consider the structure."},"content":{"rendered":"\n<p><br>Consider the structure. H3C OH Determine the oxidation number of the highlighted atom in the structure. +3<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"401\" src=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/image-148.png\" alt=\"\" class=\"wp-image-47903\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/image-148.png 700w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/image-148-300x172.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>To determine the oxidation number of the highlighted atom, we need to analyze the bonds connected to it and assign the bonding electrons based on electronegativity.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Identify the highlighted atom and its bonds:<\/strong>\u00a0The highlighted atom is the central carbon atom in the propanoic acid molecule. This carbon is part of a methylene group (-CH2-). It is bonded to:\n<ul class=\"wp-block-list\">\n<li>One carbon atom from the methyl group (H3C-).<\/li>\n\n\n\n<li>One carbon atom from the carboxyl group (-COOH).<\/li>\n\n\n\n<li>Two hydrogen atoms (-H).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Apply electronegativity rules:<\/strong>\u00a0The general order of electronegativity for the atoms involved is Oxygen > Carbon > Hydrogen.\n<ul class=\"wp-block-list\">\n<li>When two atoms in a bond have the same electronegativity (like a C-C bond), the bonding electrons are shared equally, and the bond does not contribute to the oxidation number of either atom.<\/li>\n\n\n\n<li>When two atoms have different electronegativity (like a C-H bond), the more electronegative atom is assigned all the bonding electrons.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Calculate the contribution from each bond to the highlighted carbon&#8217;s oxidation number:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>C-C bond (with the methyl carbon):<\/strong>\u00a0The atoms are the same, so the contribution is\u00a0<strong>0<\/strong>.<\/li>\n\n\n\n<li><strong>C-C bond (with the carboxyl carbon):<\/strong>\u00a0The atoms are the same, so the contribution is\u00a0<strong>0<\/strong>.<\/li>\n\n\n\n<li><strong>C-H bond:<\/strong>\u00a0Carbon is more electronegative than hydrogen. The carbon atom &#8220;takes&#8221; the electron from hydrogen, giving the carbon a charge of\u00a0<strong>-1<\/strong>\u00a0from this bond.<\/li>\n\n\n\n<li><strong>Another C-H bond:<\/strong>\u00a0Similarly, this bond contributes\u00a0<strong>-1<\/strong>\u00a0to the carbon&#8217;s oxidation number.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Sum the contributions:<\/strong>\u00a0To find the total oxidation number of the highlighted carbon, we add up the contributions from all its bonds:<br>Oxidation Number = (0) + (0) + (-1) + (-1) =\u00a0<strong>-2<\/strong><\/li>\n<\/ol>\n\n\n\n<p>Therefore, the oxidation number of the highlighted carbon atom is&nbsp;<strong>-2<\/strong>.<\/p>\n\n\n\n<p><em>(Note: The number &#8220;+3&#8221; visible at the bottom of the image is the oxidation number for the other carbon atom, the one in the carboxyl group (-COOH), not the highlighted one.)<\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-298.jpeg\" alt=\"\" class=\"wp-image-47904\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-298.jpeg 1024w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-298-300x300.jpeg 300w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-298-150x150.jpeg 150w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-298-768x768.jpeg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Consider the structure. H3C OH Determine the oxidation number of the highlighted atom in the structure. +3 The Correct Answer and Explanation is: To determine the oxidation number of the highlighted atom, we need to analyze the bonds connected to it and assign the bonding electrons based on electronegativity. Therefore, the oxidation number of the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-47902","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/47902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=47902"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/47902\/revisions"}],"predecessor-version":[{"id":47905,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/47902\/revisions\/47905"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=47902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=47902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=47902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}