J & K CET Medical J & K - CET Medical Solved Paper-2008

  • question_answer
    Number of monochloro derivatives obtained when neo-pentane is chlorinated, is

    A)  one                                      

    B)  two

    C)  three                                   

    D)  four

    Correct Answer: A

    Solution :

                    The number of monochloro derivatives of a compound depends upon the type of hydrogen present in the compound. The structure of neo-pentane is \[{{H}_{3}}C-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}\] \[\because \]It contains only one type of hydrogens. \[\therefore \]It will give only one monochloro derivative. \[{{H}_{3}}C-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{3}}\xrightarrow[{}]{C{{l}_{2}}}{{H}_{3}}C-\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\overset{\begin{smallmatrix}  C{{H}_{3}} \\  | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{2}}Cl\]


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