NEET Chemistry Rate of Reaction MCQ Question
For a reaction 2A → Products, if the concentration of A decreases from 0.5 mol L⁻¹ to 0.4 mol L⁻¹ in 10 minutes, what is the average rate of reaction in mol L⁻¹ s⁻¹?
67 × 10⁻⁴
0.001
8.33 × 10⁻³
0.05
Correct Answer
Detailed Explanation
The average rate is calculated by the change in concentration over time. The decrease is 0.1 mol L⁻¹ over 10 minutes, which is 600 seconds. Therefore, the rate is (0.1 mol L⁻¹) / (600 s) = 1.67 × 10⁻⁴ mol L⁻¹ s⁻¹.
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