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Choose the correct option.
A catalyst is a substance which:
- (1)changes the equilibrium constant of the reaction.
- (2)increases the equilibrium constant of the reaction.
- (3)supplies energy to the reaction.
- (4)shortens the time to reach equilibrium.
Answer
Answer
AICorrect option: (4)
Answer: (4) shortens the time to reach equilibrium.
A catalyst speeds up both forward and backward reactions equally, so it does not change the equilibrium constant.
From ISC 2019 Chemistry Paper 1, question 1(b)(iv).