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The reaction rate is defined as the rate at which the concentration of the reactants __________ with time or the concentration of products ___________ with time.

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The reaction rate is defined as the rate at which the concentration of the reactants __________ with time or the concentration of products ___________ with time.

(a) Increase, increase

(b) Decrease, decrease

(c) Decrease, increase

(d) Increase, decrease

I got this question in an interview for job.

My enquiry is from Order of a Reaction topic in portion Reaction Dynamics of Engineering Chemistry I

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Correct choice is (c) Decrease, increase

The explanation: The reaction rate is defined as the rate at which the concentration of the reactants decreases with time or the concentration of products increases with time.

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