A) \[2.12\times {{10}^{-4}}yea{{r}^{-1}}\]
B) \[4.33\times {{10}^{-4}}yea{{r}^{-1}}\]
C) \[3.26\times {{10}^{-3}}yea{{r}^{-1}}\]
D) \[4.33\times {{10}^{-12}}yea{{r}^{-1}}\]
Correct Answer: B
Solution :
\[K=\frac{0.693}{{{t}_{1/2}}}=\frac{0.693}{1600}\] \[=4.33\times {{10}^{-4}}\,yea{{r}^{-1}}\]
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