Home
Class 12
CHEMISTRY
Assertion(A): In chemisorption, adsorpti...

Assertion(A): In chemisorption, adsorption keeps on increasing with temperature.
Reason(R): Heat keeps on providing more and more activation energy.

A

If both assertion and reason are ture, and reason is the trure explanation of the assertion.

B

If both assertion and reason are true, but reason is not the true explanation of the assertion.

C

If assertion is true, but reason is false.

D

If both assertion and reason false.

Text Solution

Verified by Experts

The correct Answer is:
D
Correct A. In chemisorption, adsorption first increases with temperature and then decreases.
Correct R. Heat absorbed initially provides activation energy for the reaction between adsorbate and adsorbent.
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    PRADEEP|Exercise VIII. (MULTIPLE CHOICE QUESTIONS)|4 Videos

  • SURFACE CHEMISTRY

    PRADEEP|Exercise IMPORTANT QUESTIONS (FOR BOARD EXAMINATION)|28 Videos

  • SURFACE CHEMISTRY

    PRADEEP|Exercise ASSETION-REASON TYPE QUESTIONS (TYPE I)|5 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    PRADEEP|Exercise Competition (FOCUS) JEE (Main and Advanced)/Medical Entrance SPECIAL (VIII. Assertion-Reason Type Questions)(Type II)|13 Videos

Similar Questions

Explore conceptually related problems

Assertion: In physisorption, adsorption increase with increases in temperature. Reason: Physisorpation is of exothermic nature.

Assertion : In physisorption, adsorption decreases with increase in tempetrature. Reason : Lhysisorption is of eothermic nature.

In the case of chemisorption, why adsorption first increases and then decreases with temperature?

Giving appropriate examples, explain how the types of processes of adsorption (physisorption and chemisorption) are influenced by the prevailing temperature , the surface area of adsorbent and the activation energy of the process?

Assertion (A) : Rate of reaction increases with temperature. Reason (R) : Number of collisions increases with temperature.

Assertion (A): A chemical reaction becomes faster at higher temperatures. Reason (R): At higher temperatures, molecular motion becomes more rapid.

Assertion (A): pH of water increases with an increase in temperature. Reason (R) : K_(w) or water increases with increase in temperature.