JEE Main & Advanced Chemistry GOC Question Bank Structural and stereo isomerism

  • question_answer Which of the following compounds is not chiral [CBSE PMT 1998; DPMT 2002]

    A) \[DC{{H}_{2}}C{{H}_{2}}C{{H}_{2}}Cl\]

    B) \[C{{H}_{3}}C{{H}_{2}}CHDCl\]

    C) \[C{{H}_{3}}CHDC{{H}_{2}}C{{H}_{2}}Cl\]

    D) \[C{{H}_{2}}CHClC{{H}_{2}}D\]

    Correct Answer: A

    Solution :

      \[DC{{H}_{2}}-C{{H}_{2}}-C{{H}_{2}}-Cl\] Others are chiral \[C{{H}_{3}}-C{{H}_{2}}-\overset{H\,\,\,\,}{\mathop{\overset{|\,\,\,\,\,}{\mathop{\underset{Cl}{\mathop{\underset{|\,\,\,\,\,}{\mathop{{{C}^{*}}}}\,}}\,}}\,}}\,-D\]; \[C{{H}_{3}}-\underset{D\,\,}{\overset{H\,\,}{\mathop{\underset{|\,\,\,\,}{\overset{|\,\,\,\,}{\mathop{{{C}^{*}}}}}\,}}}\,-C{{H}_{2}}-C{{H}_{2}}-Cl\]    \[C{{H}_{3}}-\underset{Cl\,\,}{\overset{H\,\,}{\mathop{\underset{|\,\,\,\,}{\overset{|\,\,\,\,}{\mathop{{{C}^{*}}}}}\,}}}\,-C{{H}_{2}}D\]

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