JEE Advanced levelSingle correct optionDifficulty 3 of 3sc095
Consider: (i) a catalyst lowers the activation energy of a reaction, (ii) a catalyst increases the equilibrium yield of products, (iii) sucrose inversion catalysed by dissolved acid is homogeneous catalysis, (iv) enzymes are generally more specific than inorganic catalysts, (v) a catalyst changes the enthalpy of reaction. The number of correct statements is
A2
B4
C5
D3
Answer: D
(i), (iii) and (iv) are correct. (ii) is false because K is unchanged, and (v) is false because ΔH is a state-function difference independent of the path. So three are correct.