{"id":184433,"date":"2025-01-21T04:30:25","date_gmt":"2025-01-21T04:30:25","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=184433"},"modified":"2025-01-21T04:30:27","modified_gmt":"2025-01-21T04:30:27","slug":"which-of-the-following-molecules-has-a-trigonal-pyramidal-shape","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/01\/21\/which-of-the-following-molecules-has-a-trigonal-pyramidal-shape\/","title":{"rendered":"Which of the following molecules has a trigonal pyramidal shape"},"content":{"rendered":"\n<p>Which of the following molecules has a trigonal pyramidal shape?<br>a.COCl2<br>b. CH4<br>c. PC13<br>d. C13<br>e. BrF3<\/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 molecule with a <strong>trigonal pyramidal<\/strong> shape among the given options is:<\/p>\n\n\n\n<p><strong>c. PCl\u2083<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation (300 words)<\/h3>\n\n\n\n<p>To determine the molecular shape, we apply the <strong>VSEPR (Valence Shell Electron Pair Repulsion)<\/strong> theory. This theory predicts the 3D arrangement of atoms in a molecule by minimizing electron pair repulsion around the central atom.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Analysis of the Options<\/strong>:<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>COCl\u2082<\/strong>: This molecule has a central carbon atom with a double bond to oxygen and single bonds to two chlorine atoms. The central atom has no lone pairs, resulting in a <strong>trigonal planar<\/strong> geometry.<\/li>\n\n\n\n<li><strong>CH\u2084<\/strong>: Methane has a central carbon atom bonded to four hydrogen atoms. The central carbon has no lone pairs, leading to a <strong>tetrahedral<\/strong> geometry.<\/li>\n\n\n\n<li><strong>PCl\u2083<\/strong>: Phosphorus trichloride has a central phosphorus atom bonded to three chlorine atoms. The phosphorus atom has one lone pair of electrons. This lone pair repels the bonded atoms, causing a <strong>trigonal pyramidal<\/strong> shape.<\/li>\n\n\n\n<li><strong>Cl\u2083<\/strong>: This option does not correspond to a molecular structure; it&#8217;s likely an error. If this refers to a Cl\u2083\u207b ion (chlorine trimer), its geometry would depend on specific bonding, but it does not form a stable trigonal pyramidal structure.<\/li>\n\n\n\n<li><strong>BrF\u2083<\/strong>: Bromine trifluoride has a central bromine atom with three bonded fluorine atoms and two lone pairs. These lone pairs occupy equatorial positions, resulting in a <strong>T-shaped<\/strong> molecular geometry, not trigonal pyramidal.<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Why PCl\u2083 is Trigonal Pyramidal<\/strong>:<\/h4>\n\n\n\n<p>In PCl\u2083, the phosphorus atom is surrounded by 5 valence electrons. Three are used for bonding with chlorine, leaving one lone pair. The lone pair creates stronger repulsion compared to bond pairs, resulting in a <strong>trigonal pyramidal<\/strong> geometry. The bond angle is slightly less than 109.5\u00b0 due to this repulsion. This shape is characteristic of molecules with three bonded atoms and one lone pair around the central atom.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Which of the following molecules has a trigonal pyramidal shape?a.COCl2b. CH4c. PC13d. C13e. BrF3 The Correct Answer and Explanation is : The molecule with a trigonal pyramidal shape among the given options is: c. PCl\u2083 Explanation (300 words) To determine the molecular shape, we apply the VSEPR (Valence Shell Electron Pair Repulsion) theory. This theory [&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-184433","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/184433","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=184433"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/184433\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=184433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=184433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=184433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}