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MHT CET Chemistry Chemical Kinetics 2026 MHT CET 2026 (16 April Shift 2)

MHT CET Chemistry Question (2026) — Solution

Question

The rate law for the reaction A + B P is found to be rate = k[A]^2[B]. The rate constant of the reaction at 300 K is 6.0\ M ^ -2 s ^ -1 . Calculate the rate of the reaction when [A] = 1\ M and [B] = 0.2\ M

Options

  1. A. 0.6\ M s ^ -1 .
  2. B. 1.2\ M s ^ -1 .
  3. C. 1.8\ M s ^ -1 .
  4. D. 2.4\ M s ^ -1 .

Answer

B. 1.2\ M s ^ -1 .

Step-by-step solution

Given rate law is Rate = k[A]^2[B]. Substituting the given values: Rate = 6.0 (1)^2 0.2 Rate = 1.2\ M s ^ -1 Answer: 1.2\ M s ^ -1 .

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