A) 220 s
B) 30 s
C) 300 s
D) 347 s
Correct Answer: D
Solution :
\[R=K[A]\] \[2\times {{10}^{-5}}=K\times {{10}^{-2}}\] \[K=2\times {{10}^{-3}}\,{{\sec }^{-1}}\] \[{{t}_{1/2}}=\frac{.693}{K}=\frac{.693}{2\times {{10}^{-3}}}=\frac{693}{2}=347\,\sec \]You need to login to perform this action.
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