A) \[6.93\times {{10}^{2}}{{s}^{-1}}\]
B) \[6.93\times {{10}^{-4}}s\]
C) \[6.93\times {{10}^{-4}}{{s}^{-1}}\]
D) \[6.93\times {{10}^{3}}s\]
Correct Answer: C
Solution :
\[k=\frac{0.693}{{{t}_{1/2}}}=\frac{0.693}{1000s}\]\[=0.000693=6.93\times {{10}^{-4}}{{s}^{-1}}\]
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