1.it changes the position of equilibrium.
2.it increases the rates of both forward and backward reaction equally in reversible reaction
3.it affects the energies of reactants and products of the reaction
4.it increases the activation energy of reactants.
Correct Answer: 2.it increases the rates of both forward and backward reaction equally in reversible reaction
Explanation: Catalyst increases the rates of both forward and backward reaction equally in reversible reaction.