Question

A catalyst is a substance which
a) increases the activation energy
b) increases the rate of reaction and increases the equilibrium concentration of products
c) changes the equilibrium of a reaction so that the concentration of the product increases
d) hastens the attainment of equilibrium

Answer 1

Dear friend,
As catalyst is a substance that increases the rate of chemical reaction when it is added to to the reactants.
So, option (b) is the right option.
Hope it helps you!!

Answer 2

A catalyst is a substance which Increases the rate of reaction and increases the equilibrium concentration of products.

Option (b)

Explanation:

• The catalyst is used when a reaction will take place slowly, to make the reaction speed up.

• To obtain the result faster for the reactions which takes a very long time to happen the reaction without even disturbing the reaction, its process and the byproducts obtained.

• The catalyst not only makes the reaction faster but it also increases the equilibrium concentration of the products by balancing both forward and backward reactions.

• At the same and equal amount of speed helping the reaction to obtain equilibrium condition quickly.

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