CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Select the correct statements.
(i)   Physical adsorption is weak, multilayer, non-directional and non-specific.
(ii)  Chemical adsorption is strong, unilayer, directional and strong.
(iii) Adsorption decreases with temperature.
(iv) Chemical adsorption is more stronger than physical adsorption.


A
(i) and (iii) only
loader
B
(i), (ii) and (iv) only
loader
C
(iii) only
loader
D
All of these
loader

Solution

The correct option is A (i), (ii) and (iv) only

1.Chemical adsorption is strong, unlayered, directional and strong.

2.Chemisorption happens due to specific forces so, it is not reversible generally.

3.Physical adsorption is weak, multilayer, non-directional and non-specific.

4. Also, physisorption happens due to weak attraction forces like van,der Waals forces. Physisorption is the process whereby molecules stick to a surface with a relatively weak interaction, up to 100 times weaker than chemisorption. Chemisorption is the adsorption by chemical bonding. Whereas physisorption can usually be reversed by adding heat, chemisorption cannot.


Chemistry

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More


similar_icon
People also searched for
View More



footer-image