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 true and the Reason is the correct explanation of the assertion.

B

If both assertion and Reason are true but the reason is not the correct explanation of the assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
D
In chemisorption, adsorption first increases with temperature and then decreases. The hear initially supplied acts as activation energy for the chemical reaction occurring between adosorbate and adsorbent.
Promotional Banner

Topper's Solved these Questions

  • AIIMS 2010

    AIIMS PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

  • AIIMS 2012

    AIIMS PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|45 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.

AIIMS PREVIOUS YEAR PAPERS-AIIMS 2011-Chemistry
  1. Assertion: is less acidic than Reason: -F exerts better+mesomeri...

    Text Solution

    |

  2. Assertion: Phenoxiede ion treatment with active alkyl halide (e.g., CH...

    Text Solution

    |

  3. Assertion: K, Rb and Cs form superoxides. Reason: The stability of t...

    Text Solution

    |

  4. Assertion: A catalyst increases the rate of a reaction. Reason: In p...

    Text Solution

    |

  5. Assertion (A): NaCl is less soluble in heavy water than in ordinary wa...

    Text Solution

    |

  6. Assertion: Equal moles of different substnaces contains same number of...

    Text Solution

    |

  7. Assertion: The catalytic converted in the car's exhaust system convert...

    Text Solution

    |

  8. Assertion: As a lead storage battery gets discharged, density of elect...

    Text Solution

    |

  9. Assertion: Atomic size of sivler is almost equal to that of gold. Re...

    Text Solution

    |

  10. Assertion (A): Larger the value of cryoscopic constant of the solvent,...

    Text Solution

    |

  11. Assertion: The dissolution of ammonia in water does not follow henry's...

    Text Solution

    |

  12. Assertion: H(2) molecule is more stable than HEH molecule. Reason: ...

    Text Solution

    |

  13. Assertion (A): pH of neutral solution is always 7. Reason (R) : pH o...

    Text Solution

    |

  14. Assertion(A): In chemisorption, adsorption keeps on increasing with te...

    Text Solution

    |

  15. Assertion: The first ionisation energy of Be is greater than that of B...

    Text Solution

    |

  16. Assertion: Nitriding is a process of heating steel in an atmosphere of...

    Text Solution

    |

  17. Assertion: Both grignard reagent and dialkyl cadmium react with acid c...

    Text Solution

    |

  18. (a) If both assertion and reason are true and the reason is the correc...

    Text Solution

    |

  19. Assertion : Aspirin can cause ulcer in stomach when taken empty stomac...

    Text Solution

    |

  20. Assertion: p-Dichlorobenzene is less soluble in organic solvents than ...

    Text Solution

    |