MEDIUM

Earn 100

Which of the following adsorption takes place when dilute $KCl$ solution in contact with blood charcoal.

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Important Questions on Surface Chemistry

HARD

Chemistry>Physical Chemistry>Surface Chemistry>Adsorption

What are different types of adsorption? Give any four differences between characteristics of these different types.

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Adsorption

Which of the following statements is incorrect regarding physisorption ?

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Adsorption

During Adsorption of a gas on a solid

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Adsorption

Suppose you have taken a dilute solution of oleic acid in such a way that its concentration becomes

0.01 {cm}^{3}

of oleic acid per

{cm}^{3}

of the solution. Then you make a thin film of this solution (monomolecular thickness) of area

4 {cm}^{2}

by considering

100

spherical drops of radius

{(\frac{3}{40 π})}^{\frac{1}{3}} \times 10^{- 3} cm .

Then the thickness of oleic acid layer will be

x \times 10^{- 14} m

. Where

x

is ________ .

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Adsorption

Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at 25^oC. For this process, the correct statement is

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Adsorption

Which one of the following characteristics is associated with adsorption?

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Adsorption

Amongst the following statements regarding adsorption, those that are valid are:
(a)

ΔH

becomes less negative as adsorption proceeds.
(b) On a given adsorbent, ammonia is adsorbed more than nitrogen gas.
(c) On adsorption, the residual force acting along the surface of the adsorbent increases
(d) With the increase in temperature, the equilibrium concentration of adsorbate increases.

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Adsorption

Which of the following statements is correct for the spontaneous adsorption of a gas?

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Adsorption

Which of the following is not applicable to the phenomenon of adsorption?

HARD

Chemistry>Physical Chemistry>Surface Chemistry>Adsorption

When