Indicate whether or not the following molecules are chiral.a) 3,3-dimethylheptaneb) 2,3-dimethylheptanec) 2-methylheptaned) 3-methylheptanee) 4-methylheptane<\/p>\n\n\n\n
The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n To determine whether the given molecules are chiral, we need to understand the concept of chirality. A molecule is chiral if it has a non-superimposable mirror image, which typically occurs when a carbon atom has four different substituents (a chiral center).<\/p>\n\n\n\n Let’s analyze each molecule:<\/p>\n\n\n\n Chirality:<\/strong> Not chiral Chirality:<\/strong> Chiral Chirality:<\/strong> Not chiral Chirality:<\/strong> Not chiral Chirality:<\/strong> Not chiral In conclusion, only 2,3-dimethylheptane is chiral due to the presence of two different substituents at two carbons. The rest are symmetrical and lack chirality.<\/p>\n","protected":false},"excerpt":{"rendered":" Indicate whether or not the following molecules are chiral.a) 3,3-dimethylheptaneb) 2,3-dimethylheptanec) 2-methylheptaned) 3-methylheptanee) 4-methylheptane The Correct Answer and Explanation is : To determine whether the given molecules are chiral, we need to understand the concept of chirality. A molecule is chiral if it has a non-superimposable mirror image, which typically occurs when a carbon atom […]<\/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-156743","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/156743","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=156743"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/156743\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=156743"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=156743"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=156743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}a) 3,3-dimethylheptane<\/h3>\n\n\n\n
Explanation:<\/strong> The structure has two methyl groups on the third carbon (3,3-dimethyl), leading to symmetry. Therefore, it has a plane of symmetry, and no chiral centers.<\/p>\n\n\n\nb) 2,3-dimethylheptane<\/h3>\n\n\n\n
Explanation:<\/strong> In this molecule, the second and third carbons each have different substituents (C-H, C-C, and C-CH\u2083 groups). Specifically, the second carbon has a methyl group and a longer carbon chain, and the third carbon also has two different substituents (one is a methyl group, and the other leads to different paths). This leads to non-superimposable mirror images.<\/p>\n\n\n\nc) 2-methylheptane<\/h3>\n\n\n\n
Explanation:<\/strong> In 2-methylheptane, the second carbon (the chiral center) has a methyl group, a hydrogen atom, and two identical carbon chains (the heptane backbone). Thus, it has a plane of symmetry and lacks chirality.<\/p>\n\n\n\nd) 3-methylheptane<\/h3>\n\n\n\n
Explanation:<\/strong> The 3-methylheptane structure has a methyl group on the third carbon. The third carbon has two identical carbon chains attached (from the heptane structure), meaning there is symmetry, making it non-chiral.<\/p>\n\n\n\ne) 4-methylheptane<\/h3>\n\n\n\n
Explanation:<\/strong> Similar to the previous cases, the 4-methylheptane molecule has a methyl group on the fourth carbon. This carbon is attached to two identical carbon chains (the heptane backbone) and thus has a plane of symmetry.<\/p>\n\n\n\nSummary:<\/h3>\n\n\n\n
\n