Question

44. Which of the following statements explains the
role of catalyst in increasing the rate of a reac-
tion?
1) catalyst provides an alternative path of lower
activation energy to the reactants.
2) It decreases the rate of backward reaction
3) It increases the number of collisions between
the reacting molecules
4) It provides extra energy to the reacting mol-
ecules
​

Answer 1

Answer:

1)

Explanation:

Catalyst just decreases the activation energy required to start the reaction while the total change in enthalpy for the reaction remains the same even if we don't add catalyst .