A) 35 min
B) 70 min
C) 105 min
D) 17.5 min
Correct Answer: B
Solution :
[b] \[{{t}_{1/2}}=\frac{0.693}{k}=2100s=35\,min\] \[{{t}_{75}}\]% \[=2{{t}_{1/2}}=2\times 35=70\,min\]You need to login to perform this action.
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