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  • Which of the following is/are true regarding rate of reaction?Option: 1 It can depend on concentration of reactants.<div class='qna-opt

Which of the following is/are true regarding rate of reaction?

Option: 1

It can depend on concentration of reactants.


Option: 2

Presence of positive catalyst decreases the rate of reaction.


Option: 3

Rate of reaction does not depend on temperature.


Option: 4

None of the above.


Answers (1)

best_answer

Factors affecting rate of reaction:

Effect of Concentration:
From law of mass action, we know
Rate of reaction ∝ Concentration of reactants
Generally, rate of reaction decreases with passage of time, due to decrease in concentration of reactants.

Effect of temperature:
Most of the chemical reactions are accelerated by increase in temperature.

Effect of catalyst:
Presence of positive catalyst increases the rate of reaction.
Presence of negative catalyst decreases the rate of reaction.

Posted by

Ritika Harsh

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