A) \[\text{mol}\,{{\text{L}}^{-1}}{{\text{S}}^{-1}}\]
B) \[\text{mo}{{\text{l}}^{-2}}\,{{\text{L}}^{2}}{{T}^{-1}}\]
C) \[\text{mo}{{\text{l}}^{-1}}\,\text{L}{{\text{s}}^{-1}}\]
D) \[mo{{l}^{-2}}{{L}^{-1}}{{S}^{-1}}\]
Correct Answer: B
Solution :
Key Idea: For the reaction of nth order \[k=\frac{1}{time}\frac{1}{{{[conc.]}^{(n-1)}}}\] For 3rd order reaction \[n=3\] \[\therefore \] units of\[k=\frac{1}{time}\times \frac{1}{{{(conc.)}^{3-1}}}\] \[=\frac{1}{time}\times \frac{1}{{{(mol\,{{L}^{-1}})}^{2}}}\] \[=mo{{l}^{-2}}{{L}^{2}}{{T}^{-1}}\]
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