1
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Consider the following about the tyndall effect.

(I) It is used to distinguish between a true and colloidal solution.

(II) It is possible only when the dispersed medium and dispersed phase differ much in their refraction indices.

(III) It is observed only when the size of colloidal particles is much smaller than the wavelength of the light used.

The correct statements are

A
I and III only
B
II and III only
C
I, II and III
D
I and II only
2
TS EAMCET 2023 (Online) 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the factors which favour the physical adsorption from the following

(I) High surface area

(II) Low temperatures

(III) High temperatures

(IV) Low pressures

(V) High pressures

A
I, III and IV only
B
I, II and V only
C
III and V only
D
I, II and IV only
3
TS EAMCET 2022 (Online) 20th July Evening Shift
MCQ (Single Correct Answer)
+1
-0

The process in which colloids, when subjected to DC electric field move towards an electrode is

A

brownian movement

B

Tyndall effect

C

peptisation

D

electrophoresis

4
TS EAMCET 2022 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

10 g of a gas is adsorbed on 500 g of solid at 10 bar. If the pressure is increased at 20 bar, 14 g of the gas is adsorbed by the same solid at the same temperature. What is the slope of Freundlich adsorption isotherm?

A

1.0

B

$4 / 3$

C

3

D

0.5

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