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NEET UG CHEMISTRY MCQ: CHEMICAL KINETICS

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The data for the reaction, A+B→C\mathrm{ }A + B \to C
Ex                      [A]0                  [B]0                  Initial  rate1                            0.012                0.035                              0.102                          0.024                  0.070                              0.803                          0.024                    0.035                          0.104                          0.012                  0.070                          0.80\begin{array}{l} Ex\;\;\;\;\;\;\;\;\;\;\;{\left[ A \right]_0}\;\;\;\;\;\;\;\;\;{\left[ B \right]_0}\;\;\;\;\;\;\;\;\;Initial\;\mathrm{ }rate\\ \begin{array}{llllllllllllllllllll} {1\;\;\;\;\;\;\;\;\;\;\;\;\;\;0.012\;\;\;\;\;\;\;\;0.035\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;0.10}\\ {2\;\;\;\;\;\;\;\;\;\;\;\;\;0.024\;\;\;\;\;\;\;\;\;0.070\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;0.80}\\ {3\;\;\;\;\;\;\;\;\;\;\;\;\;0.024\;\;\;\;\;\;\;\;\;\;0.035\;\;\;\;\;\;\;\;\;\;\;\;\;0.10}\\ {4\;\;\;\;\;\;\;\;\;\;\;\;\;0.012\;\;\;\;\;\;\;\;\;0.070\;\;\;\;\;\;\;\;\;\;\;\;\;0.80} \end{array} \end{array}
The rate law corresponds to the above data is
View answer and explanation
Correct option: A
rate=k[B]3rate = k{\left[ B \right]^3}
Option A (rate=k[B]3rate = k{\left[ B \right]^3}) is correct because the rate is only dependent on the concentration of B, and the order with respect to B is 3.

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