MCQ
What is half life of a first order reaction if time required to decrease concentration of reactant from $0.8 mol dm ^{-3}$ to $0.2 mol dm ^{-3}$ is 12 hour ? $(\log 4=0.6021)$
- ✓1.5hour
- B12 hour
- C6 hour
- D3 hour
✓
Answer
Correct option: A.
1.5hour
A
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