What is the unit of rate constant for the zero order reaction?

What is the unit of rate constant for the zero order reaction?
  1. mol $\mathrm{dm}^{-3} \mathrm{t}^{-1}$
  2. $\mathrm{~mol} \mathrm{~d} \mathrm{~m}^{3} \mathrm{t}^{-1}$
  3. $\mathrm{t}^{-1}$
  4. $\mathrm{~mol} \mathrm{dm}^{-3} \mathrm{t}$

Solution

For zero order reaction, $k=\frac{[A]_{0}-[A]_{t}}{t}=\frac{m o l d m^{-3}}{t}=m o l d m^{-3} t^{-1}$

Asked in: MHT CET 2020 (15 Oct Shift 1)

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