JEE Main & Advanced Sample Paper JEE Main - Mock Test - 28

  • question_answer
    For the reaction \[X+Y\xrightarrow[{}]{{}}P\], the rate law is expressed as rate \[=k[X]{{[Y]}^{2}}\]. Which of the following statements will be false for the reaction?

    A) If [Y] is held constant and [X] is doubled, reaction rate will be doubled.

    B) If [X] is held constant and [Y] is reduced to one-fourth, the rate of reaction will be halved.

    C) If [X] and [Y] both are doubled, the rate of reaction will be increased by 8 times.

    D) This reaction is of third order.

    Correct Answer: B

    Solution :

    [b] : In the rate law expression, rate \[=k[X]{{[Y]}^{2}}\], if Y is reduced to one-fourth, the rate of reaction will be 1/16 times of the original rate.


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