AIIMS AIIMS Solved Paper-2008

  • question_answer

    Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark the correct answer as

    Assertion: Nitrobenzene is used as a solvent in Friedel-Crafts reaction. Reason: Fusion of nitrobenzene with solid \[C{{O}_{2}}\] gives a low yield of a mixture of \[M{{g}_{2}}{{C}_{3}}\] and p-nitro phenols.

    A)  If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

    B)  If both Assertion and Reason are true but the reason is not the correct explanation of the Assertion

    C)  If Assertion is true but Reason is false

    D)  If both Assertion and Reason are false

    Correct Answer: B

    Solution :

    Due to strong deactivation of benzene ring by \[-N{{O}_{2}}\] group, nitrobenzene is often used as a solvent in Friedel-Crafts reaction.


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