JEE Main & Advanced Chemistry Hydrocarbons / हाइड्रोकार्बन Question Bank Alkane

  • question_answer
    Which of the following is a gemdihalide [CPMT 1976, 88]

    A) \[C{{H}_{3}}.CHBr.CHBr.C{{H}_{3}}\]

    B) \[C{{H}_{2}}Br.C{{H}_{2}}Br\]

    C) \[CHBr=CHBr\]

    D) \[C{{H}_{3}}CHB{{r}_{2}}\]

    Correct Answer: D

    Solution :

               In gemdihalide both the halogen atoms are present on the same carbon atom while in vicdihalide both the halogen atoms are present on adjacent carbon atoms. \[\underset{\text{Gemdihalide}}{\mathop{C{{H}_{3}}-CHB{{r}_{2}}}}\,\]                  \[\underset{vic\text{-}\text{dihalide}}{\mathop{\underset{\underset{Br\,\,\,}{\mathop{|\,\,\,\,\,\,\,}}\,}{\mathop{C{{H}_{2}}}}\,-\underset{\underset{Br\,\,\,\,}{\mathop{|\,\,\,\,\,\,\,\,}}\,}{\mathop{C{{H}_{2}}}}\,}}\,\]


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