{"id":235577,"date":"2025-06-15T13:56:11","date_gmt":"2025-06-15T13:56:11","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=235577"},"modified":"2025-06-15T13:56:12","modified_gmt":"2025-06-15T13:56:12","slug":"which-compound-has-bond-angles-nearest-to-120","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/15\/which-compound-has-bond-angles-nearest-to-120\/","title":{"rendered":"Which compound has bond angles nearest to 120"},"content":{"rendered":"\n<p>Which compound has bond angles nearest to 120<br>? (a) o=c=s b CHI3C H2C=O d H-C=C-H e  CH4<\/p>\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><strong>Correct Answer:<\/strong> <strong>(c) H\u2082C=O (formaldehyde)<\/strong><\/p>\n\n\n\n<p>Formaldehyde (H\u2082C=O) exhibits bond angles that are closest to <strong>120\u00b0<\/strong> because of the <strong>trigonal planar geometry<\/strong> around the central carbon atom. The carbon atom in H\u2082C=O is <strong>sp\u00b2 hybridized<\/strong>, which means its three hybrid orbitals arrange themselves in a <strong>planar triangular shape<\/strong> to minimize electron repulsion, resulting in bond angles of approximately 120\u00b0.<\/p>\n\n\n\n<p>The molecule consists of a central carbon atom double bonded to an oxygen atom and single bonded to two hydrogen atoms. The sp\u00b2 hybridization of the central carbon leads to three electron domains (two C\u2013H bonds and one C=O bond) lying in a plane, arranged as far apart as possible. This results in idealized bond angles of 120\u00b0, though small deviations may occur due to the presence of the more electronegative oxygen atom influencing electron distribution.<\/p>\n\n\n\n<p>Analyzing the other options:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>(a) O=C=S (carbonyl sulfide):<\/strong> This is a linear molecule with a bond angle of approximately <strong>180\u00b0<\/strong>, due to sp hybridization of the carbon atom.<\/li>\n\n\n\n<li><strong>(b) CHI\u2083 (triiodomethane):<\/strong> The carbon in CHI\u2083 is sp\u00b3 hybridized, forming a <strong>tetrahedral<\/strong> geometry with bond angles around <strong>109.5\u00b0<\/strong>.<\/li>\n\n\n\n<li><strong>(d) H\u2013C\u2261C\u2013H (ethyne):<\/strong> Each carbon atom is sp hybridized, resulting in a <strong>linear geometry<\/strong> with bond angles of <strong>180\u00b0<\/strong>.<\/li>\n\n\n\n<li><strong>(e) CH\u2084 (methane):<\/strong> The carbon atom is sp\u00b3 hybridized, producing <strong>tetrahedral geometry<\/strong> and bond angles close to <strong>109.5\u00b0<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>Only H\u2082C=O shows geometry where bond angles are near 120\u00b0, characteristic of molecules with sp\u00b2 hybridization and trigonal planar shape. This makes it the most suitable answer among the given options.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-604.jpeg\" alt=\"\" class=\"wp-image-235578\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Which compound has bond angles nearest to 120? (a) o=c=s b CHI3C H2C=O d H-C=C-H e CH4 The Correct Answer and Explanation is: Correct Answer: (c) H\u2082C=O (formaldehyde) Formaldehyde (H\u2082C=O) exhibits bond angles that are closest to 120\u00b0 because of the trigonal planar geometry around the central carbon atom. The carbon atom in H\u2082C=O is [&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-235577","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/235577","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=235577"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/235577\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=235577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=235577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=235577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}