Verified Solution • 2025–26 Session
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QNEET-2022-Ch-377: NEET 2022 Chemistry - Class 12 NEET-2022-Ch-377 Solution: For a first order reaction \(A Products\) initial concentration …
For a first order reaction initial concentration of A is 0.1 M which becomes 0.001 M after 5 minutes. Rate constant for the reaction in is 1.3818 0.9212 0.4606 0.2303
Multiple Choice Options
- A 1.3818
- B 0.9212
- C 0.4606
- D 0.2303
Step-by-Step Verified Solution
For first order reaction,
K = 2.303 t log _ [ A 0 ] [ A ] ; where A 0 is the initial concentration of reactant A.
A 0 = 0.1 M
A = 0.001 M
t = 5 minute
K = 2.303 5 log _ 0.1 0.001 = 2.303 5 log _ 10 2
= 2.303 5 _ 2
K = 0.9212 min _ 1