{"id":190487,"date":"2025-02-12T10:29:28","date_gmt":"2025-02-12T10:29:28","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=190487"},"modified":"2025-02-12T10:29:30","modified_gmt":"2025-02-12T10:29:30","slug":"what-is-the-iupac-name-for-the-molecule-shown-below","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/12\/what-is-the-iupac-name-for-the-molecule-shown-below\/","title":{"rendered":"What is the IUPAC name for the molecule shown below"},"content":{"rendered":"\n<p>What is the IUPAC name for the molecule shown below?<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/02\/image-400.png\" alt=\"\" class=\"wp-image-190488\"\/><\/figure>\n\n\n\n<p>A) 5,6,6-trimethyl-1-heptyne<br>B) 5-tert-butyl-1-hexyne<br>C) 2,2,3-trimethyl-6-heptyne<br>D) 2,2,3-(3-butynyl)butane<br>E) sec-butyl-tert-butylacetylene<\/p>\n\n\n\n<p>What is the IUPAC name for the molecule shown below?<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/02\/image-401.png\" alt=\"\" class=\"wp-image-190489\"\/><\/figure>\n\n\n\n<p>A) 4,4-dimethyl-2-pentyne<br>B) 2,2-dimethyl-4-heptyne<br>C) 1-tert-butyl-3-heptyne<br>D) 6,6-dimethyl-3-heptyne<br>E) 6,6,6-trimethyl-3-hexyne<\/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 IUPAC names for the two molecules are as follows:<\/p>\n\n\n\n<p><strong>1. First Molecule:<\/strong><\/p>\n\n\n\n<p>The correct IUPAC name is <strong>5-tert-butyl-1-hexyne<\/strong>.<\/p>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Longest Carbon Chain:<\/strong> The molecule contains a six-carbon chain with a triple bond between the first and second carbons, indicating it is a hexyne.<\/li>\n\n\n\n<li><strong>Substituents:<\/strong> A tert-butyl group (\u2013C(C\u2086H\u2081\u2081)\u2083) is attached to the fifth carbon of the chain.<\/li>\n\n\n\n<li><strong>Numbering:<\/strong> The chain is numbered from the end nearest the triple bond to give the lowest possible locants to the triple bond and substituents.<\/li>\n<\/ul>\n\n\n\n<p>Therefore, the IUPAC name is <strong>5-tert-butyl-1-hexyne<\/strong>.<\/p>\n\n\n\n<p><strong>2. Second Molecule:<\/strong><\/p>\n\n\n\n<p>The correct IUPAC name is <strong>4,4-dimethyl-2-pentyne<\/strong>.<\/p>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Longest Carbon Chain:<\/strong> The molecule has a five-carbon chain with a triple bond between the second and third carbons, indicating it is a pentyne.<\/li>\n\n\n\n<li><strong>Substituents:<\/strong> Two methyl groups (\u2013CH\u2083) are attached to the fourth carbon of the chain.<\/li>\n\n\n\n<li><strong>Numbering:<\/strong> The chain is numbered from the end nearest the triple bond to give the lowest possible locants to the triple bond and substituents.<\/li>\n<\/ul>\n\n\n\n<p>Therefore, the IUPAC name is <strong>4,4-dimethyl-2-pentyne<\/strong>.<\/p>\n\n\n\n<p>These names are consistent with the IUPAC nomenclature rules for organic compounds.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is the IUPAC name for the molecule shown below? A) 5,6,6-trimethyl-1-heptyneB) 5-tert-butyl-1-hexyneC) 2,2,3-trimethyl-6-heptyneD) 2,2,3-(3-butynyl)butaneE) sec-butyl-tert-butylacetylene What is the IUPAC name for the molecule shown below? A) 4,4-dimethyl-2-pentyneB) 2,2-dimethyl-4-heptyneC) 1-tert-butyl-3-heptyneD) 6,6-dimethyl-3-heptyneE) 6,6,6-trimethyl-3-hexyne The Correct Answer and Explanation is : The IUPAC names for the two molecules are as follows: 1. First Molecule: The correct IUPAC [&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-190487","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/190487","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=190487"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/190487\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=190487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=190487"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=190487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}