In which of the following reactions, is the unit of rat constant and rate of reaction the same?

(1) 1″ order reaction

(2) 2nd order reaction

(3) 3’d order reaction

(4) Zero order reaction

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Answer:

The unit of the rate constant and the rate of reaction will be the same for a zero-order reaction. This is because, for a zero-order reaction, the rate is independent of concentration, and both the rate constant and rate have the unit M/s.

So, the correct answer is: (4) Zero order reaction.