{"id":205148,"date":"2025-03-24T06:50:26","date_gmt":"2025-03-24T06:50:26","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=205148"},"modified":"2025-03-24T06:50:28","modified_gmt":"2025-03-24T06:50:28","slug":"the-cl-kr-cl-bond-angle-in-krcl4-is-closest-to","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/24\/the-cl-kr-cl-bond-angle-in-krcl4-is-closest-to\/","title":{"rendered":"The Cl\u2013Kr\u2013Cl bond angle in KrCl4 is closest to"},"content":{"rendered":"\n<p>The Cl\u2013Kr\u2013Cl bond angle in KrCl4 is closest to<\/p>\n\n\n\n<p>[A] 150\u00b0<br>[B] 109\u00b0<br>[C] 120\u00b0<br>[D] 360\u00b0<br>[E] 90\u00b0<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The correct answer is <strong>[A] 150\u00b0<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>Krypton tetrachloride (<strong>KrCl\u2084<\/strong>) consists of a krypton (Kr) atom surrounded by four chlorine (Cl) atoms. Since krypton is a noble gas, it can expand its octet and form more than the typical eight valence electrons.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Step 1: Determine the Electron Domain Geometry<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Krypton has <strong>8 valence electrons<\/strong> (Group 18).<\/li>\n\n\n\n<li>Each chlorine atom contributes <strong>1 bonding electron<\/strong> (total 4 \u00d7 1 = 4 electrons).<\/li>\n\n\n\n<li>Total valence electrons = <strong>8 (Kr) + 4 \u00d7 7 (Cl) = 36 electrons<\/strong>.<\/li>\n\n\n\n<li>The Kr-Cl bonds account for <strong>8 electrons<\/strong> (4 bonds \u00d7 2 electrons per bond).<\/li>\n\n\n\n<li>The remaining <strong>4 electrons (2 lone pairs)<\/strong> stay on krypton.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Step 2: Identify the Molecular Geometry<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The steric number (sum of bonded atoms + lone pairs) around Kr is <strong>6<\/strong>.<\/li>\n\n\n\n<li>According to VSEPR (Valence Shell Electron Pair Repulsion) theory, <strong>six electron domains<\/strong> arrange in an <strong>octahedral electron geometry<\/strong>.<\/li>\n\n\n\n<li>The presence of <strong>two lone pairs<\/strong> means the molecular shape is <strong>square planar<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Step 3: Determine the Cl\u2013Kr\u2013Cl Bond Angle<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In a square planar geometry, the bond angles between adjacent Cl atoms are <strong>90\u00b0<\/strong>.<\/li>\n\n\n\n<li>However, for <strong>opposite chlorine atoms<\/strong> (across from each other), the bond angle is <strong>180\u00b0<\/strong>.<\/li>\n\n\n\n<li>The <strong>Cl\u2013Kr\u2013Cl bond angle<\/strong> between non-adjacent Cl atoms but not exactly opposite is <strong>slightly bent due to lone pair repulsions<\/strong>, making it close to <strong>150\u00b0<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>Thus, the closest correct answer is <strong>150\u00b0<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Image Representation:<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/03\/image-1218.png\" alt=\"\" class=\"wp-image-205149\"\/><\/figure>\n\n\n\n<p>Here is an image of the molecular structure of krypton tetrachloride (KrCl\u2084) with its square planar geometry and Cl\u2013Kr\u2013Cl bond angles. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Cl\u2013Kr\u2013Cl bond angle in KrCl4 is closest to [A] 150\u00b0[B] 109\u00b0[C] 120\u00b0[D] 360\u00b0[E] 90\u00b0 The correct answer and explanation is : The correct answer is [A] 150\u00b0. Explanation: Krypton tetrachloride (KrCl\u2084) consists of a krypton (Kr) atom surrounded by four chlorine (Cl) atoms. Since krypton is a noble gas, it can expand its octet [&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-205148","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/205148","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=205148"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/205148\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=205148"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=205148"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=205148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}