2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-30

  • question_answer
    In the reaction \[2A+B\to {{A}_{2}}B,\] if the concentration of A is doubled and that of B is halved, then the rate of reaction will:

    A)  increase by 4 times

    B)  decrease by 2 times

    C)  increase by 2 times

    D)  remains the same

    Correct Answer: C

    Solution :

    \[2A+B\xrightarrow{{}}{{A}_{2}}B\] \[r=K{{[A]}^{2}}[B]\] If the concentration of A is doubled and B is halved, then             \[r'=K{{[2A]}^{2}}\left[ \frac{B}{2} \right]=2K{{[A]}^{2}}[B]\]             \[r'=2r\]


You need to login to perform this action.
You will be redirected in 3 sec spinner