Home
Class 12
CHEMISTRY
Assertion : In physisorption, adsorption...

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

A

If both assertion and reason are correct and reason is correct explanation for assertion.

B

If both assertion and reason are correct but reason is not correct explanation for assertion.

C

If assertion is correct but reason is incorrect.

D

If assertion and reason both are incorrect.

Text Solution

Verified by Experts

The correct Answer is:
A
Reason is the correct explanation for assertion.
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    DINESH PUBLICATION|Exercise BRAIN STORMING MULTIPLE CHOICE QUESTIONS (MCQs)|8 Videos

  • SURFACE CHEMISTRY

    DINESH PUBLICATION|Exercise MULTIPLE CORRECT OPTIONS TYPE MCWs|15 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    DINESH PUBLICATION|Exercise ULTIMATE PREPARATORY PACKAGE|20 Videos

  • THE CARBON FAMILY

    DINESH PUBLICATION|Exercise Ultimate|11 Videos

Similar Questions

Explore conceptually related problems

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

Give reason for the Physisorption decreases with increase in temperature.

In the following question, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as. Assertion (A): Extent of physisorption of a gas increases with decrease in temperature. Reason (R): It is due to decrease in strength of van der Waals forces.

In the following question, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as. Assertion (A): Extent of physisorption of a gas increases with decrease in temperature. Reason (R): It is due to decrease in strength of van der Waals forces.

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

Knowledge Check

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

    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 and the reason is not the correct explanation of the assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.

  • Assertion : Physical adsorption increases with increase in temperature. Reason : Physical adsorption is an endothermic process.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion
    C
    If assertion is true but reason is false
    D
    if both assertion and reason are false

  • In the following question, A statement of Assertion (A) is followed by a statement of Reason (R). Mark the correct choice as. Assertion (A): Extent of physisorption of a gas increases with decrease in temperature. Reason (R): It is due to decrease in strength of van der Waals forces.

    A
    Both A and Rare true and R is the correct explanation of A
    B
    Both A and R are true but explanation of A
    C
    A is true but R is false
    D
    A is false and R is True
    • DINESH PUBLICATION-SURFACE CHEMISTRY -ASSERTIN-REASON TYPE QUESTIONS
    1. Assertion : In physisorption, adsorption decreases with increase in te...

      Text Solution

      |

    2. Assertion : Lyophilic sols are more stable than Lyophobis sols. Reas...

      Text Solution

      |

    3. Assertion : Catalysts increase the reaction velocity. Reason : Catal...

      Text Solution

      |

    4. Assertion : Soap acts as emulsifier in its cleansing action. Reason ...

      Text Solution

      |

    5. Assertion : Colloidal sol scatters ight while true solution does not. ...

      Text Solution

      |

    6. Assertion : A colloidal sol of Al(OH)(3) is more readly coagulated by ...

      Text Solution

      |

    7. Assertion : A sol of As(2)S(3) prepared by the action of H(2)S on As(2...

      Text Solution

      |

    8. Assertion : Physical adsorption on the surface of sadsorbent equires a...

      Text Solution

      |

    9. Assertion : Aqueous gold colloidal sol is red in colour. Reason : Th...

      Text Solution

      |

    10. Assertion : Fe^(3+) ions can be used for the coagulation of As(2)S(3) ...

      Text Solution

      |

    11. Assertion : In the presenced of promote, the activity on the surface o...

      Text Solution

      |

    12. Assertion : A colloidal sol. Of Fe(OH)(3) formed by peptisation carrie...

      Text Solution

      |

    13. Assertion : Proteins, starch and rubber are lyophilic coloids. Rea...

      Text Solution

      |

    14. Assertion : Lyophilic colloids such as starch, gelatin etc, act as pro...

      Text Solution

      |

    15. Assertion : The micelle formed by sodium stereate in water has -COO^(-...

      Text Solution

      |

    16. Assertion : Sulphide ores are concentrated by forth flotation process....

      Text Solution

      |

    17. Assertion : Colloidal solutions are electrically netural Reason : Di...

      Text Solution

      |

    18. Assertion : During adsorption, DeltaG, DeltaH and DeltaS decrease i.e....

      Text Solution

      |

    19. Assertion : Al^(3+) ions have greater precipitating power for As(2)S(3...

      Text Solution

      |

    20. Assertion : Oxidation of Na(2)SO(3) is not caused by air but in the pr...

      Text Solution

      |