A) 40 min
B) 20 min
C) 30min
D) 25 min
Correct Answer: B
Solution :
[b] Change in 67% to 33% is almost half the concentration change. 67%\[\xrightarrow[change]{Half}33.5(\approx 33\]%) So time interval between the stages of its 33% and 67% decay is same as \[{{t}_{1/2}}=20min.\]You need to login to perform this action.
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