Which of the following is correct for adsorption theory of Heterogeneous catalysis? Statement-I : This theory explains why the catalyst remains unchanged in mass and chemical composition at the end of the reaction. Statement-II : This theory explains the action of catalytic promoters and catalytic poison.
Statement-I is true, Statement-II is false
Statement-I is false, Statement-II is true
Both Statement-I and Statement-II are true
Both Statement-I and Statement-II are false

please answer rightly