{"id":217696,"date":"2025-05-22T10:52:47","date_gmt":"2025-05-22T10:52:47","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=217696"},"modified":"2025-05-22T10:52:49","modified_gmt":"2025-05-22T10:52:49","slug":"which-of-the-following-is-the-correct-iupac-name-of-the-following-structure","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/22\/which-of-the-following-is-the-correct-iupac-name-of-the-following-structure\/","title":{"rendered":"Which of the following is the correct IUPAC name of the following structure"},"content":{"rendered":"\n

Which of the following is the correct IUPAC name of the following structure?<\/p>\n\n\n\n

A. Chlorocyclopentane
B. 2-Chloro-1-methylcyclopentane
C. 1-Methyl-2-chlorocyclopentane
D. 1-Chloro-2-methylcyclopentane<\/p>\n\n\n\n

The Correct Answer and Explanation is<\/mark><\/strong><\/p>\n\n\n\n

To determine the correct IUPAC name<\/strong> of the given structure, let\u2019s break down the naming rules and apply them step-by-step. Since the image of the structure is not provided, we\u2019ll assume a general structure that this multiple-choice question refers to\u2014typically, a cyclopentane ring<\/strong> substituted with a methyl group (\u2013CH\u2083)<\/strong> and a chlorine atom (\u2013Cl)<\/strong>.<\/p>\n\n\n\n

Step 1: Identify the Parent Hydrocarbon<\/h3>\n\n\n\n

The base structure is cyclopentane<\/strong>, which is a five-membered carbon ring.<\/p>\n\n\n\n

Step 2: Identify the Substituents<\/h3>\n\n\n\n

We are told (or can infer) that there is:<\/p>\n\n\n\n

    \n
  • One chlorine (Cl)<\/strong> substituent<\/li>\n\n\n\n
  • One methyl (CH\u2083)<\/strong> substituent<\/li>\n<\/ul>\n\n\n\n

    Step 3: Number the Carbon Ring<\/h3>\n\n\n\n

    The rules for numbering a ring in IUPAC naming are:<\/p>\n\n\n\n

      \n
    1. Number the ring in a way that gives the lowest possible set of locants<\/strong> to the substituents.<\/li>\n\n\n\n
    2. Alphabetical priority is used only when<\/strong> both substituents could receive the same numbers by numbering in either direction.<\/li>\n<\/ol>\n\n\n\n

      Let\u2019s try numbering the ring:<\/p>\n\n\n\n

        \n
      • Start at the carbon bonded to the chlorine atom (Cl) \u2192 this becomes carbon 1<\/strong>.<\/li>\n\n\n\n
      • Then number the ring to give the next substituent (the methyl group) the lowest possible number.<\/li>\n<\/ul>\n\n\n\n

        So if the methyl group is attached to the next carbon<\/strong>, it would be at carbon 2<\/strong>.<\/p>\n\n\n\n

        This gives:<\/p>\n\n\n\n

          \n
        • Chlorine at position 1<\/li>\n\n\n\n
        • Methyl at position 2<\/li>\n<\/ul>\n\n\n\n

          Now apply alphabetical order<\/strong> in naming: “chlorine” comes before “methyl”, so “chloro” is listed before “methyl” in the name.<\/p>\n\n\n\n

          Correct IUPAC Name:<\/h3>\n\n\n\n

          1-Chloro-2-methylcyclopentane<\/strong><\/p>\n\n\n\n

          Answer:<\/h3>\n\n\n\n

          \u2705 D. 1-Chloro-2-methylcyclopentane<\/strong><\/p>\n\n\n\n

          Explanation Summary:<\/h3>\n\n\n\n
            \n
          • The parent ring is cyclopentane<\/strong>.<\/li>\n\n\n\n
          • The ring contains two substituents: a chloro<\/strong> and a methyl<\/strong> group.<\/li>\n\n\n\n
          • The ring is numbered such that substituents get the lowest locants: Cl at carbon 1, CH\u2083 at carbon 2.<\/li>\n\n\n\n
          • Substituents are listed alphabetically in the name.<\/li>\n\n\n\n
          • Hence, the correct IUPAC name is 1-Chloro-2-methylcyclopentane<\/strong>.<\/li>\n<\/ul>\n\n\n\n

            This follows all standard IUPAC nomenclature rules<\/p>\n\n\n\n

            \"\"<\/figure>\n\n\n\n

            .<\/p>\n","protected":false},"excerpt":{"rendered":"

            Which of the following is the correct IUPAC name of the following structure? A. ChlorocyclopentaneB. 2-Chloro-1-methylcyclopentaneC. 1-Methyl-2-chlorocyclopentaneD. 1-Chloro-2-methylcyclopentane The Correct Answer and Explanation is To determine the correct IUPAC name of the given structure, let\u2019s break down the naming rules and apply them step-by-step. Since the image of the structure is not provided, we\u2019ll assume […]<\/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-217696","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/217696","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=217696"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/217696\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=217696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=217696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=217696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}