RE-NEET2026Chemistry-Chemical Kinetics
RE-NEET 2026 Chemistry Reaction Order MCQ Question
Type: MCQ-numerical-Medium-Class 12
2A → B is a zero-order reaction, where k = 1.0 mol L⁻¹ min⁻¹. If the initial concentration of A is 2 M, then the time taken to complete 75% of the reaction will be
A
0.75 min
B
1.0 min
C
2.0 min
D
1.5 min
Correct Answer
Option B
Detailed Explanation
For a zero-order reaction, time = (initial concentration - final concentration) / rate constant. Here, time = (2 - 0.5) / 1 = 1.5 min.
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