A) \[\text{tim}{{\text{e}}^{-1}}\]
B) \[\text{mol}\,{{L}^{-1}}\,{{s}^{-1}}\]
C) \[L\,mo{{l}^{-1}}{{s}^{-1}}\]
D) \[\text{L}\,mo{{l}^{-1}}{{s}^{-1}}\]
Correct Answer: B
Solution :
Key Idea: For zero order reaction \[Rate=k{{[conc.]}^{o}}\] \[\therefore \] \[k=Rate\] or \[k=\frac{\text{change}\,\text{in}\,\text{concentration}}{\text{time}\,\text{take}}=\frac{mol/L}{s}\] \[\therefore \] units of \[k\]are \[\,mol\,{{L}^{-1}}{{s}^{-1}}\]
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