{"id":268299,"date":"2025-07-24T02:53:20","date_gmt":"2025-07-24T02:53:20","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=268299"},"modified":"2025-07-24T02:53:22","modified_gmt":"2025-07-24T02:53:22","slug":"which-structural-formula-represents-an-aldehyde","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/24\/which-structural-formula-represents-an-aldehyde\/","title":{"rendered":"Which structural formula represents an aldehyde"},"content":{"rendered":"\n<p>Which structural formula represents an aldehyde? HO A) H-C-C-OH H B) HHH H-C-C-C-H HHH C) HO H-C-C-H HH D) H H H-C-C-OH HH<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The correct answer is <strong>D) H H H-C-C-OH HH<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>An <strong>aldehyde<\/strong> is a functional group characterized by the structure <strong>R-CHO<\/strong>, where &#8220;R&#8221; is any carbon-containing group, and &#8220;CHO&#8221; represents the aldehyde functional group. The aldehyde group consists of a carbonyl group (C=O) attached to a hydrogen atom (H).<\/p>\n\n\n\n<p>Here\u2019s a breakdown of the options:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A)<\/strong> H-C-C-OH: This structure suggests a two-carbon chain where one carbon is attached to a hydroxyl group (OH) and the other to a hydrogen atom. This resembles a <strong>hydroxy alcohol<\/strong>, not an aldehyde.<\/li>\n\n\n\n<li><strong>B)<\/strong> H-C-C-C-H: This structure represents a simple <strong>alkane<\/strong> with a three-carbon chain and no functional group like a carbonyl group. Therefore, this is not an aldehyde.<\/li>\n\n\n\n<li><strong>C)<\/strong> H-C-C-H: This structure suggests a two-carbon chain with a hydrogen atom attached to each carbon. This could represent an <strong>alkane<\/strong>, and there is no carbonyl group, so it&#8217;s not an aldehyde.<\/li>\n\n\n\n<li><strong>D)<\/strong> H H H-C-C-OH HH: This structure has a <strong>carbonyl group (C=O)<\/strong> attached to a hydrogen atom (H), with the remaining bonds filled by hydrogen atoms. This represents the aldehyde functional group (R-CHO), where the carbonyl group is bonded to a hydrogen atom.<\/li>\n<\/ul>\n\n\n\n<p>Therefore, option <strong>D<\/strong> correctly represents an aldehyde. In this case, the aldehyde functional group is a two-carbon chain (C-C) with a hydrogen attached to one carbon and a hydroxyl group (OH) attached to the other, forming an aldehyde.<\/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-banner6-1786.jpeg\" alt=\"\" class=\"wp-image-268300\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Which structural formula represents an aldehyde? HO A) H-C-C-OH H B) HHH H-C-C-C-H HHH C) HO H-C-C-H HH D) H H H-C-C-OH HH The Correct Answer and Explanation is: The correct answer is D) H H H-C-C-OH HH. Explanation: An aldehyde is a functional group characterized by the structure R-CHO, where &#8220;R&#8221; is any carbon-containing [&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-268299","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/268299","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=268299"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/268299\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=268299"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=268299"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=268299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}