Directions: In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as. Assertion (A): Rate of reaction doubles when concentration of reactant is doubled if it is a first order reaction. Reason (R): Rate constant also doubles.

Both A and R are true and R is the correct explanation of A

Both A and R are true but R is NOT the correct explanation of A

Directions: In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as. Assertion (A): Dust particles suspended in the air inside unheated gain electrons can sometimes react explosively. Reason (R): The dust particles have a large surface area for the reaction.

Both A and R are true and R is the correct explanation of A

Both A and R are true but R is NOT the correct explanation of A

Directions: In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as. Assertion (A): The rate of reaction increases with increase in temperature. Reason (R): The reactant molecules collide less frequently.

Both A and R are true and R is the correct explanation of A

Both A and R are true but R is NOT the correct explanation of A

Directions: In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as. Assertion (A): Elementary reactions have the same value of order and molecularity. Reason (R): Molecularity is the number of molecules that participate in the reaction, while order is an experimental quantity.

Both A and R are true and R is the correct explanation of A

Both A and R are true but R is NOT the correct explanation of A

Directions: In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as. Assertion (A): For complex reactions molecularity and order are not the same. Reason (R): Order of reaction may be zero.

Both A and R are true and R is the correct explanation of A

Both A and R are true but R is NOT the correct explanation of A

Directions: In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as. Assertion (A): Hydrolysis of an ester follows first order kinetics. Reason (R): Concentration of water remains nearly constant during the course of the reaction.

Both A and R are true and R is the correct explanation of A

Both A and R are true but R is NOT the correct explanation of A

Directions: In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as. Assertion (A): For a first order reaction, half-life period is independent of initial concentration of the reacting species. Reason (R): The half-life of a reaction is the time in which the reactant concentration is reduced to one half of its initial concentration.

Both A and R are true and R is the correct explanation of A

Both A and R are true but R is NOT the correct explanation of A

Directions: In the following questions, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as. Assertion (A): Order of the reaction can be zero or fractional. Reason (R): We cannot determine order from a balanced chemical equation.

Both A and R are true and R is the correct explanation of A

Both A and R are true but R is NOT the correct explanation of A

In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices. Assertion: Order of the reaction can be zero or fractional. Reason : We cannot determine order from a balanced chemical equation.

Both assertion and reason are true and the reason is the correct explanation of assertion.

Both assertion and reason are true but the reason is not the correct explanation of assertion.

Assertion is true but reason is false.

Assertion is false but reason is true.

In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices. Assertion : Order and molecularity are same. Reason : Order is determined experimentally and molecularity is the sum of the stoichiometric coefficient of rate determining elementary step.

Both assertion and reason are true and the reason is the correct explanation of assertion.

Both assertion and reason are true but the reason is not the correct explanation of assertion.

Assertion is true but reason is false.

Assertion is false but reason is true.

In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices. Assertion : The enthalpy of reaction remains constant in the presence of a catalyst. Reason : A catalyst participating in the reaction, forms a different activated complex and lowers down the activation energy but the difference in energy of reactant and product remains the same.

Both assertion and reason are true and the reason is the correct explanation of assertion.

Both assertion and reason are true but the reason is not the correct explanation of assertion.

Assertion is true but reason is false.

Assertion is false but reason is true.

In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices. Assertion : Rate constants determined from Arrhenius equation are fairly accurate for simple as well as complex molecules. Reason : Reactant molecules undergo chemical change irrespective of their orientation during collision.

Both assertion and reason are true and the reason is the correct explanation of assertion.

Both assertion and reason are true but the reason is not the correct explanation of assertion.

Assertion is true but reason is false.

Assertion is false but reason is true.

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