{"id":238885,"date":"2025-06-18T13:03:29","date_gmt":"2025-06-18T13:03:29","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=238885"},"modified":"2025-06-18T13:03:31","modified_gmt":"2025-06-18T13:03:31","slug":"the-correct-iupac-name-for-the-following-organic-compound-is","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/18\/the-correct-iupac-name-for-the-following-organic-compound-is\/","title":{"rendered":"The correct IUPAC name for the following organic compound is"},"content":{"rendered":"\n

The correct IUPAC name for the following organic compound is: H?C-CH? H?C-CH-CH?-C?C-CH? A. 5-methyl-2-heptyne B. 5-methyl-2-octyne C. 5-propyl-2-hexyne D. 5-ethyl-2-hexyne<\/p>\n\n\n\n

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

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

The correct IUPAC name for the given organic compound is:<\/p>\n\n\n\n

A. 5-methyl-2-heptyne<\/strong><\/p>\n\n\n\n

Explanation:<\/h3>\n\n\n\n

To name this organic compound correctly, follow the IUPAC nomenclature rules step by step:<\/p>\n\n\n\n

\n\n\n\n

1. Identify the longest continuous carbon chain that includes the triple bond.<\/strong><\/p>\n\n\n\n

From the image:<\/p>\n\n\n\n

    \n
  • Start numbering from the end closest to the triple bond to give the triple bond the lowest possible number.<\/li>\n\n\n\n
  • The longest carbon chain containing the triple bond has seven carbon atoms<\/strong> (hept-), and the triple bond starts at carbon 2.<\/li>\n<\/ul>\n\n\n\n
    \n\n\n\n

    2. Identify and name any substituents.<\/strong><\/p>\n\n\n\n

      \n
    • There is a methyl group (CH\u2083)<\/strong> attached to the fifth carbon of the chain when counting from the end closest to the triple bond.<\/li>\n<\/ul>\n\n\n\n
      \n\n\n\n

      3. Combine the name:<\/strong><\/p>\n\n\n\n

        \n
      • Root name (7 carbon atoms): hept<\/strong><\/li>\n\n\n\n
      • Triple bond at carbon 2: 2-yne<\/strong><\/li>\n\n\n\n
      • Methyl group at carbon 5: 5-methyl<\/strong><\/li>\n<\/ul>\n\n\n\n

        Putting it all together:
        5-methyl-2-heptyne<\/strong><\/p>\n\n\n\n

        \n\n\n\n

        Why the other choices are incorrect:<\/h3>\n\n\n\n
          \n
        • B. 5-methyl-2-octyne<\/strong>: This suggests 8 carbon atoms in the main chain, but the longest chain is only 7 carbons long.<\/li>\n\n\n\n
        • C. 5-propyl-2-hexyne<\/strong>: There is no propyl group in the structure.<\/li>\n\n\n\n
        • D. 5-ethyl-2-hexyne<\/strong>: There is no ethyl group present.<\/li>\n<\/ul>\n\n\n\n
          \n\n\n\n

          Thus, the correct name based on IUPAC rules is:
          A. 5-methyl-2-heptyne<\/strong> \u2705<\/p>\n\n\n\n

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

          The correct IUPAC name for the following organic compound is: H?C-CH? H?C-CH-CH?-C?C-CH? A. 5-methyl-2-heptyne B. 5-methyl-2-octyne C. 5-propyl-2-hexyne D. 5-ethyl-2-hexyne The Correct Answer and Explanation is: The correct IUPAC name for the given organic compound is: A. 5-methyl-2-heptyne Explanation: To name this organic compound correctly, follow the IUPAC nomenclature rules step by step: 1. Identify […]<\/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-238885","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/238885","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=238885"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/238885\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=238885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=238885"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=238885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}