{"id":252078,"date":"2025-07-11T06:37:45","date_gmt":"2025-07-11T06:37:45","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=252078"},"modified":"2025-07-11T06:37:47","modified_gmt":"2025-07-11T06:37:47","slug":"what-is-the-molecular-shape-of-hcn-4","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/11\/what-is-the-molecular-shape-of-hcn-4\/","title":{"rendered":"What is the molecular shape of HCN"},"content":{"rendered":"\n<p>What is the molecular shape of HCN? bent linear angular trigonal pyramidal<\/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 molecular shape of HCN (hydrogen cyanide) is <strong>linear<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Lewis Structure<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Hydrogen cyanide consists of a hydrogen atom (H), a carbon atom (C), and a nitrogen atom (N). The carbon atom is the central atom, and it forms a triple bond with nitrogen (C\u2261N) and a single bond with hydrogen (H-C).<\/li>\n\n\n\n<li>In this arrangement, hydrogen is bonded to carbon, and carbon is bonded to nitrogen through a triple bond. The nitrogen atom has a lone pair of electrons.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Electron Domain Geometry<\/strong>:\n<ul class=\"wp-block-list\">\n<li>The central atom, carbon, has two regions of electron density: one from the C-H bond and the other from the triple bond to nitrogen. Both are bonding regions, with no lone pairs on carbon.<\/li>\n\n\n\n<li>Nitrogen has one lone pair and forms a triple bond with carbon. The lone pair does not affect the molecular shape of the overall molecule significantly.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>VSEPR Theory<\/strong>:\n<ul class=\"wp-block-list\">\n<li>According to <strong>Valence Shell Electron Pair Repulsion (VSEPR)<\/strong> theory, the electron pairs around the carbon atom will arrange themselves to minimize repulsion.<\/li>\n\n\n\n<li>Since there are only two regions of electron density around the carbon (the C-H bond and the C\u2261N bond), the molecule adopts a <strong>linear<\/strong> geometry, with the H-C\u2261N bond angle being approximately 180\u00b0.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Molecular Shape<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Because there are no lone pairs on the central carbon atom and the bonding regions are aligned straight along a single axis, HCN has a <strong>linear<\/strong> molecular shape.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>Thus, the shape of HCN is linear, and the molecule is essentially a straight line from hydrogen to nitrogen.<\/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-banner6-215.jpeg\" alt=\"\" class=\"wp-image-252083\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is the molecular shape of HCN? bent linear angular trigonal pyramidal The Correct Answer and Explanation is: The molecular shape of HCN (hydrogen cyanide) is linear. Explanation: Thus, the shape of HCN is linear, and the molecule is essentially a straight line from hydrogen to nitrogen.<\/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-252078","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/252078","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=252078"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/252078\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=252078"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=252078"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=252078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}