EAMCET Medical EAMCET Medical Solved Paper-2010

  • question_answer
    Which one of the following is not having two chiral centres?

    A) \[{{H}_{3}}CCH(Br)CH(OH)C{{H}_{3}}\]

    B)  \[{{H}_{3}}CCH(N{{H}_{2}})CH(Br)C{{H}_{3}}\]

    C)  \[{{H}_{3}}CCH(N{{H}_{2}})CH(Cl)C{{H}_{3}}\]

    D)  \[{{H}_{3}}CCH(N{{H}_{2}})C{{H}_{2}}C{{H}_{3}}\]

    Correct Answer: D

    Solution :

    The carbon all the four valencies of which are satisfied by four different groups is called chiral carbon or chiral centre. In \[{{H}_{3}}C-\overset{\text{*}}{\mathop{C}}\,HC{{H}_{2}}C{{H}_{3}}\]only one chiral centre is found (\[\overset{*}{\mathop{C}}\,=\] chiral carbon atom).


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