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Chemistry · 2026

JEE Main · 2 April 2026, Shift 2 · Q57

Consider the reaction aX → bY, for which the rate constant at 30^° C is 1 × 10^-3 mol^-1 Ls^-1. Which of the following statements are true? A. When…

Consider the reaction $\displaystyle \mathrm{aX} \rightarrow \mathrm{bY}$, for which the rate constant at $\displaystyle 30^{\circ} \mathrm{C}$ is $\displaystyle 1 \times 10^{-3} \mathrm{~mol}^{-1} \mathrm{Ls}^{-1}$. Which of the following statements are true ? A. When concentration of ' $\displaystyle X$ ' is increased to four times, the rate of reaction becomes $\displaystyle 16$ times. B. The reaction is a second order reaction. C. The half-life period is independent of the concentration of X. D. Decomposition of $\displaystyle \mathrm{N}_2 \mathrm{O}_5$ is an example of the above reaction. E. Figure: JEE Main Chemistry 2026, Chemical Kinetics is valid for the above reaction. Choose the correct answer from the options given below :
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JEE Main 2026 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.