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JEE Mains 25-Jan-2023 Shift 2 Solved Paper

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Question : 59

Total: 90

A first order reaction has the rate constant, k=4.6 ×10−3 s−1. The number of correct statement ∕ s from the following is/are ________.
Given : log‌3=0.48
A. Reaction completes in 1000 s.
B. The reaction has a half-life of 500 s.
C. The time required for 10% completion is 25 times the time required for 90% completion.
D. The degree of dissociation is equal to (1−e−kt).
E. The rate and the rate constant have the same unit.

[25-Jan-2023 Shift 2]

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