English

Name type of adsorption in which vander Waals focres are present.

Advertisements
Advertisements

Question

Answer in one sentence:

Name type of adsorption in which vander Waals focres are present.

One Line Answer
Advertisements

Solution

Physical adsorption or physisorption.

shaalaa.com
  Is there an error in this question or solution?
Chapter 11: Adsorption and Colloids - Exercises [Page 173]

APPEARS IN

Balbharati Chemistry [English] Standard 11 Maharashtra State Board
Chapter 11 Adsorption and Colloids
Exercises | Q 2. (A) | Page 173

RELATED QUESTIONS

What is the effect of temperature on chemisorption ?


Why is adsorption always exothermic?


Write any two characteristics of chemisorption.


Why are powdered substances more effective adsorbents than their crystalline forms?


Distinguish between the meaning of the terms adsorption and absorption. Give one example of.


What is the difference between physisorption and chemisorption?


Give reason why a finely divided substance is more effective as an adsorbent.


Give reasons for the following observations :

 Powdered substances are more effective  adsorbents.


How does chemisorption vary with temperature?


Which of the following compounds is formed when tungsten adsorbs oxygen gas?


Which of the following is an example of physisorption?


In physisorption, adsorption is generally ____________.


Chromatography is based on the principle of ____________.


The extent of adsorption increases with the ____________.


Physical adsorption of a gaseous species may change to chemical adsorption with ______.


In which of the following reactions heterogenous catalysis is involved?

(a) \[\ce{2SO2 (g) + O2 (g) ->[NO(g)] 2SO3 (g)}\]

(b) \[\ce{2SO2 (g) ->[Pt(s)] 2SO3 (g)}\]

(c) \[\ce{N2 (g) + 3H2 (g) ->[Fe(s)] 2NH3 (g)}\]

(d) \[\ce{CH3COOCH3 (l) + H2O (l) ->[HCI(l)] CH3COOH (aq) + CH3OH (aq)}\]


Why is it important to have clean surface in surface studies?


Why do physisorption and chemisorption behave differently with rise in temperature?


Give an example where physisorption changes to chemisorption with rise in temperature. Explain the reason for change.


Which among the following is a false statement?


In physical adsorption, gas molecules are bound on the solid surface by


Chromatography is based on:-


Write three differences between physisorption and chemisorption.


Assertion A : Activated charcoal adsorbs SO2 more efficiently than CH4.

Reason R : Gases with lower critical temperatures are readily adsorbed by activated charcoal.
In light of the above statements, choose the correct answer from the options given below.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×