{"id":258982,"date":"2025-07-18T15:52:57","date_gmt":"2025-07-18T15:52:57","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=258982"},"modified":"2025-07-18T15:52:59","modified_gmt":"2025-07-18T15:52:59","slug":"which-of-the-following-newman-projections-represents-23-dimethylpentane","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/18\/which-of-the-following-newman-projections-represents-23-dimethylpentane\/","title":{"rendered":"Which of the following Newman projections represents 2,3-dimethylpentane"},"content":{"rendered":"\n<pre id=\"preorder-ask-header-text\" class=\"wp-block-preformatted\">Which of the following Newman projections represents 2,3-dimethylpentane? CH3 CH(CH3)2 CH(CH3)2 H | | | | H-CH3 H H H | | | | CH(CH3)2 CH3 CH3 CH(CH3)2 1 2 3 4 a. 1 b. 2 c. 3 d. 4<\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/image-534.png\" alt=\"\" class=\"wp-image-258983\"\/><\/figure>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p><strong>Front Carbon:<\/strong>&nbsp;H, H, and an isopropyl group (CH(CH\u2083)\u2082).<br>*&nbsp;<strong>Back Carbon:<\/strong>&nbsp;H, H, and an isopropyl group (CH(CH\u2083)\u2082).<br>Reconstructing this molecule gives 2,5-dimethylhexane, which is incorrect.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Projection 3:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Front Carbon:<\/strong>\u00a0H, CH\u2083, and CH\u2083.<\/li>\n\n\n\n<li><strong>Back Carbon:<\/strong>\u00a0H, H, and an isopropyl group (CH(CH\u2083)\u2082).<br>Reconstructing this molecule gives 2,2,4-trimethylpentane, which is incorrect.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Projection 4:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Front Carbon:<\/strong>\u00a0H, H, and H.<\/li>\n\n\n\n<li><strong>Back Carbon:<\/strong>\u00a0H, an isopropyl group (CH(CH\u2083)\u2082), and another isopropyl group (CH(CH\u2083)\u2082).<br>Reconstructing this molecule gives 2,3,4-trimethylpentane, which is incorrect.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>Therefore, only Newman projection 1 correctly represents the molecule 2,3-dimethylpentane.<\/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-banner9-282.jpeg\" alt=\"\" class=\"wp-image-258984\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Which of the following Newman projections represents 2,3-dimethylpentane? CH3 CH(CH3)2 CH(CH3)2 H | | | | H-CH3 H H H | | | | CH(CH3)2 CH3 CH3 CH(CH3)2 1 2 3 4 a. 1 b. 2 c. 3 d. 4 The Correct Answer and Explanation is: Front Carbon:&nbsp;H, H, and an isopropyl group (CH(CH\u2083)\u2082).*&nbsp;Back Carbon:&nbsp;H, [&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-258982","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/258982","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=258982"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/258982\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=258982"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=258982"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=258982"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}