Assertion :According to transition state theory for the formation of an activated complex, one of the vibrational degree of freedom is converted into a translational degree of freedom Reason: Energy of the activated complex is higher than the energy of reactant molecules.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
The formation of activated complex takes place when vibrational degree of freedom is converted into a translational degree of freedom.This statement is given by transition state theory.Also, the energy of activated complex is higher than the energy of reactant molecules, is true but it is not correct explanation of the assertion.

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Similar questions

Q. Assertion: Each vibrational mode gives two degrees of freedom.
Reason: By law of equipartition of energy, the energy for each degree of freedom in thermal equilibrium is

2 k_{B} T

Assertion (A) The enthalpy of reaction remains constant in the presence of a catalyst.

Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in enrgy of reactant and product remains the same.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion (A) All collision of reactant molecules lead to product formation.

Reason (R) Only those collisions in which molecules have correct orientation and sufficient kinetic energy lead to compound formation.

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

Q. Assertion
If BOD level of water in reservoir is less than 5 ppm it is not polluted.

Reason
High biological oxygen demand means low activity of bacteria in water.

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