{"id":247089,"date":"2025-07-07T14:41:56","date_gmt":"2025-07-07T14:41:56","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=247089"},"modified":"2025-07-07T14:41:58","modified_gmt":"2025-07-07T14:41:58","slug":"what-is-the-shape-of-hcn","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/07\/what-is-the-shape-of-hcn\/","title":{"rendered":"What is the shape of HCN"},"content":{"rendered":"\n

What is the shape of HCN? What is the angle of HCN?<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

The shape of HCN (hydrogen cyanide) is linear<\/strong>, and the bond angle is 180\u00b0<\/strong>.<\/p>\n\n\n\n

Explanation:<\/h3>\n\n\n\n

Hydrogen cyanide consists of three atoms: hydrogen (H), carbon (C), and nitrogen (N), arranged in a simple molecule. The structure of HCN can be drawn as:<\/p>\n\n\n\n

H\u2212C\u2261N\\text{H} – \\text{C} \\equiv \\text{N}H\u2212C\u2261N<\/p>\n\n\n\n

    \n
  1. Bonding in HCN:<\/strong>\n
      \n
    • The carbon atom in HCN is sp hybridized, which means it forms two sigma bonds: one with the hydrogen atom and the other with the nitrogen atom.<\/li>\n\n\n\n
    • The nitrogen atom forms a triple bond with the carbon atom, consisting of one sigma bond and two pi bonds.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • Electron Geometry and Molecular Geometry:<\/strong>\n
        \n
      • Since carbon is sp hybridized, it has two electron regions (one for the C-H bond and one for the C\u2261N bond). This results in a linear electron geometry.<\/li>\n\n\n\n
      • The molecular geometry also reflects this linearity, with the hydrogen and nitrogen atoms positioned on opposite sides of the carbon atom.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
      • Bond Angle:<\/strong>\n
          \n
        • In a linear molecule, the ideal bond angle between the atoms is 180\u00b0<\/strong>. In HCN, this ideal bond angle is observed because of the sp hybridization of the carbon atom, which forces the atoms to be as far apart as possible, resulting in a straight line.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n

          This linear structure and 180\u00b0 bond angle are characteristic of molecules where the central atom has sp hybridization, which minimizes electron repulsion between the bonds, leading to a stable molecular shape.<\/p>\n\n\n\n

          \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

          What is the shape of HCN? What is the angle of HCN? The Correct Answer and Explanation is: The shape of HCN (hydrogen cyanide) is linear, and the bond angle is 180\u00b0. Explanation: Hydrogen cyanide consists of three atoms: hydrogen (H), carbon (C), and nitrogen (N), arranged in a simple molecule. The structure of HCN […]<\/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-247089","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/247089","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=247089"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/247089\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=247089"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=247089"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=247089"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}