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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2013

  • question_answer
    The number of optical isomers of the compound, \[C{{H}_{3}}-CHBr-CHBr-COOH\] is

    A)  \[0\]  

    B)  \[1\] 

    C)  \[3\]         

    D)  \[4\]

    Correct Answer: D

    Solution :

    : According to vant Hoffs equation, no. of option isomers = 2 (when the molecule has no symmetry). Where, n = no. of chiral carbon atoms. \[C{{H}_{3}}-\overset{*}{\mathop{C}}\,HBr-\overset{*}{\mathop{C}}\,HBr-COOH\] No. of chiral carbons \[=2\] \[\therefore \]No. of optical isomers are \[={{2}^{n}}={{2}^{2}}=4\]


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