CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2007

  • question_answer
    How many chiral carbon atoms are present in 2,3, 4-trichloropentane?

    A)  4                                            

    B)  1

    C)  2                                            

    D)  3

    Correct Answer: C

    Solution :

    The structure of 2, 3, 4-trichloro pentane is                 \[H-\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  H \end{smallmatrix}}{\mathop{C}}\,}}\,-\overset{\begin{smallmatrix}  H \\  |* \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C}}\,}}\,-\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C}}\,}}\,-\overset{\begin{smallmatrix}  H \\  |* \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C}}\,}}\,-\overset{\begin{smallmatrix}  H \\  | \end{smallmatrix}}{\mathop{\underset{\begin{smallmatrix}  | \\  H \end{smallmatrix}}{\mathop{C}}\,}}\,-H\] Hence, two chiral carbon atoms are present in 2, 3, 4-trichloropentane.


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