J & K CET Engineering J and K - CET Engineering 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 \[{{H}_{3}}C-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-C{{H}_{3}}\] \[\because \]It contains only one type of hydrogens. \[\therefore \]It will give only one monochloro derivative. \[{{H}_{3}}C-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-C{{H}_{3}}\xrightarrow{C{{l}_{2}}}{{H}_{3}}C-\underset{C{{H}_{3}}}{\overset{C{{H}_{3}}}{\mathop{\underset{|}{\overset{|}{\mathop{C}}}\,}}}\,-C{{H}_{2}}Cl\]


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