A) \[8.2\text{ }h\]
B) \[5.2h\]
C) \[1.2h\]
D) \[2.4\text{ }h\]
Correct Answer: C
Solution :
Key Idea: \[{{t}_{1/2}}=0.693/\lambda \] Given, \[\lambda =0.58{{h}^{-1}},\lambda =?\] \[{{t}_{1/2}}=\frac{0.693}{0.58}\] \[=1.19h=1.2h\]
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