Chemistry · 2026
JEE Main · 22 January 2026, Shift 1 · Q58
A → product (First order reaction). Three sets of experiment were performed for a reaction under similar experimental conditions: Run 1 ⇒ 100 mL of…
A → product (First order reaction).
Three sets of experiment were performed for a reaction under similar experimental conditions:Run $\displaystyle 1 \Rightarrow 100 \mathrm{~mL}$ of $\displaystyle 10$ M solution of reactant $\displaystyle A$
Run $\displaystyle 2 \Rightarrow 200 \mathrm{~mL}$ of $\displaystyle 10$ M solution of reactant $\displaystyle A$
Run $\displaystyle 3 \Rightarrow 100 \mathrm{~mL}$ of $\displaystyle 10$ M solution of reactant $\displaystyle \mathrm{A}+100 \mathrm{~mL}$ of $\displaystyle \mathrm{H}_2 \mathrm{O}$ added.
The correct variation of rate of reaction is
Official answer
From NTA’s final answer key for this paper.
(3)
Run $\displaystyle 3$ < Run $\displaystyle 1$ = Run $\displaystyle 2$
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JEE Main 2026 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.