When a chemical reaction takes place, during the course of the reaction the rate of reaction?

Keeps on increasing with time

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Remains constant with time

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Keeps on decreasing with time

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Shows irregular trend with time

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Solution

The correct option is B Keeps on decreasing with time
Rate of reaction $\propto$ conc. of reactants
As the reaction proceeds, concentration of the reactants decreases hence the rate also keeps on decreasing with time.

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When a chemical reaction takes place, during the course of the reaction the rate of reaction?

The correct option is B Keeps on decreasing with timeRate of reaction ∝ conc. of reactantsAs the reaction proceeds, concentration of the reactants decreases hence the rate also keeps on decreasing with time.

The correct option is B Keeps on decreasing with time
Rate of reaction $\propto$ conc. of reactants
As the reaction proceeds, concentration of the reactants decreases hence the rate also keeps on decreasing with time.