Chemistry 12 Chapter 4 Exemplar Solutions Chemical Kinetics Part 5 (For CBSE, ICSE, IAS, NET, NRA 2023)

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Question 30:

Mark the incorrect statements.

(i) Catalyst provides an alternative pathway to reaction mechanism.

(ii) Catalyst raises the activation energy.

(iii) Catalyst lowers the activation energy.

(iv) Catalyst alters enthalpy change of the reaction.

Answer: (ii) , (iv

Question 31:

(i)

Catalyst

(ii)

Catalyst

(iii)

Catalyst

(iv)

Catalyst

Answer: (i) , (iv)

Question 32:

Which of the following graphs is correct for a first order reaction?

(i)

First Order Reaction

(ii)

First Order Reaction

(iii)

First Order Reaction

(iv)

First Order Reaction

Answer: (i) , (iv)