JEE Main 2026 Chemistry question
Consider the reaction aX → bY, for which the rate constant at 30°C is 1 × 10⁻³ mol⁻¹ L s⁻¹. Which of the following statements are true? A. When concentration of 'X' is increased to four times, the rate of reaction becomes 16 times. B. The reaction is a second order reaction. C. The half-life period is independent of the concentration of X. D. Decomposition of N₂O₅ is an example of the above reaction. E. ln[R₀]/[R] vs time is valid for the above reaction. Choose the correct answer from the options given below:
Solution
The units mol⁻¹Ls⁻¹ identify a second-order reaction (B true), so rate ∝ [X]²: quadrupling [X] gives 16× the rate (A true). For second order, half-life depends
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