{"id":246621,"date":"2025-07-07T09:48:11","date_gmt":"2025-07-07T09:48:11","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=246621"},"modified":"2025-07-07T09:48:13","modified_gmt":"2025-07-07T09:48:13","slug":"is-formaldehyde-polar-or-nonpolar-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/07\/is-formaldehyde-polar-or-nonpolar-2\/","title":{"rendered":"Is formaldehyde polar or nonpolar"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/image-261.png\" alt=\"\" class=\"wp-image-246622\"\/><\/figure>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>Here is the correct answer and explanation for the problem.<\/p>\n\n\n\n<p><strong>Correct Answer<\/strong><\/p>\n\n\n\n<p>To complete the Lewis structure for ascorbic acid, you need to add one double bond and multiple lone pairs. The double bond should be added between the two carbon atoms on the left side of the five-membered ring. After adding the double bond, add two lone pairs of electrons to each of the six oxygen atoms to ensure every oxygen satisfies the octet rule.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation<\/h3>\n\n\n\n<p>The problem asks to complete the Lewis structure for ascorbic acid (vitamin C) based on an incomplete diagram and the instruction that it should contain 64 valence electrons. It is important to first note a discrepancy in the problem&#8217;s premise. The correct molecular formula for ascorbic acid is C6H8O6, which contains a total of 68 valence electrons (6 carbons x 4 + 8 hydrogens x 1 + 6 oxygens x 6 = 68). The provided diagram is also missing four hydrogen atoms from the actual structure.<\/p>\n\n\n\n<p>However, following the spirit of the question to create a valid Lewis structure from the given framework, the process involves two main steps: adding a multiple bond and distributing lone pair electrons.<\/p>\n\n\n\n<p>The most critical feature of ascorbic acid&#8217;s structure is a carbon-carbon double bond within the five-membered ring. This bond exists between the two carbon atoms that are attached to hydroxyl (-OH) groups, forming an enediol. In the provided diagram, this corresponds to the two carbons on the left side of the ring. Adding a double bond here is the first major correction. This modification helps satisfy the octet for these carbons and creates the conjugated system that is key to vitamin C&#8217;s antioxidant properties.<\/p>\n\n\n\n<p>With the double bond in place, the final step is to satisfy the octet rule for all the oxygen atoms. In a stable molecule, each oxygen atom will typically form two covalent bonds and have two lone pairs, or form one double bond and have two lone pairs. In the completed structure of ascorbic acid, all six oxygen atoms\u2014the four in hydroxyl groups, the one in the carbonyl group (C=O), and the one within the ring (an ether linkage)\u2014will each have two lone pairs of electrons. This ensures that every carbon has four bonds and every oxygen has a full octet of eight valence electrons, resulting in the correct, stable Lewis structure.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner5-901.jpeg\" alt=\"\" class=\"wp-image-246623\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The Correct Answer and Explanation is: Here is the correct answer and explanation for the problem. Correct Answer To complete the Lewis structure for ascorbic acid, you need to add one double bond and multiple lone pairs. The double bond should be added between the two carbon atoms on the left side of the five-membered [&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-246621","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/246621","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=246621"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/246621\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=246621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=246621"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=246621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}