Chemistry · 2022
JEE Main · 28 July 2022, Shift 1 · Q80
For kinetic study of the reaction of iodide ion with H_2 O_2 at room temperature: (A) Always use freshly prepared starch solution. (B) Always keep…
For kinetic study of the reaction of iodide ion with $\displaystyle \mathrm{H}_2 \mathrm{O}_2$ at room temperature :
(A)
Always use freshly prepared starch solution.
(B)
Always keep the concentration of sodium thiosulphate solution less than that of KI solution.
(C)
Record the time immediately after the appearance of blue colour.
(D)
Record the time immediately before the appearance of blue colour.
(E)
Always keep the concentration of sodium thiosulphate solution more than that of KI solution.
Choose the correct answer from the options given below :
Official answer
(1)
(A), (B), (C) only
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JEE Main 2022 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.