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The unit of rate constant for a zero order reaction is

1. mol L⁻¹ s⁻¹
2. L mol⁻¹ s⁻¹
3. L² mol⁻² s⁻¹
4. s⁻¹

Correct answer: mol L⁻¹ s⁻¹

Solution

For a zero-order reaction, the rate constant has units of concentration/time, which is mol L⁻¹ s⁻¹.

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