NEET Chemistry Activation Energy MCQ Question
Which combination of statements about activation energy is correct?
Activation energy is a constant that varies with temperature; it is essential for a reaction to occur.
The Arrhenius factor (A) is not affected by temperature and is specific to each reaction.
Activation energy can be lowered by the presence of a catalyst, allowing more reactant particles to overcome it.
The activation energy is always higher than the energy of the reactants in an exothermic reaction.
Correct Answer
Detailed Explanation
Statement C is correct as catalysts lower the activation energy, increasing the reaction rate. Statement A is incorrect because activation energy is not a constant that varies with temperature; it is a fixed value for a given reaction. Statement B is misleading because while A is specific to a reaction, it does not remain unchanged with temperature. Statement D is false as the activation energy can be lower than the energy of the products in an exothermic reaction.
Found an issue with this question?
Related Questions
More from Activation Energy
More from
Which of the following factors does NOT affect the rate of a chemical reaction?
Assertion (A): The rate constant of a first-order reaction is independent of the initial concentration of the reactants. | Reason (R): The half-life o...
Match Column-I with Column-II. Column-I Column-II (a) Rate Law (i) k [A] x [B] y (b) Differential Rate Equation (ii) Reaction order (c)...