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Chemistry · 2022 · 2 marks
CBSE 2022 · Region 2 · Set 3 · Q3
A reaction is first order in X and second order in Y. (i) How is the rate affected on increasing the concentration of Y three times? (ii) How is the…
A reaction is first order in X and second order in Y.
(i)
How is the rate affected on increasing the concentration of Y three times ?
(ii)
How is the rate affected when the concentrations of both X and Y are doubled ?
Marking-scheme solution
(i) Rate increases $\displaystyle 9$ times
(ii) Rate increases $\displaystyle 8$ times
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CBSE Class 12 Chemistry past-paper question from the 2022 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.