Match the following: List- I List- II Type of Colloid Phase in medium ( A ) Aerosol ( I ) Solid in solid ( B ) Emulsion ( II ) Liquid in solid ( C ) Foam ( III ) Gas in liquid ( D ) Gel ( IV ) Solid in gas ( V ) Liquid in liquid The correct answer is

A = IV , B = V , C = III , D = II

A = I , B = II , C = III , D = IV

A = IV , B = V , C = II , D = III

A = II , B = V , C = I , D = IV

Match the following: (i) Foam (a) smoke (ii) Gel (b) cell fluid (iii) Aerosol (c) jellies (iv) Emulsion (d) rubber (e) froth (f) milk

(i) – (e), (ii) – (c), (iii) – (a), (iv) – (f)

(i) – (b), (ii) – (c), (iii) – (e), (iv) – (d)

(i) – (d), (ii) – (b), (iii) – (a), (iv) – (e)

(i) – (d), (ii) – (b), (iii) – (e), (iv) – (f)

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At high concentration of soap in water soap behaves as a

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Important Questions on Surface Chemistry

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Match the following:

	List- $I$		List- $II$
	Type of Colloid		Phase in medium
( $A$ )	Aerosol	( $I$ )	Solid in solid
( $B$ )	Emulsion	( $II$ )	Liquid in solid
( $C$ )	Foam	( $III$ )	Gas in liquid
( $D$ )	Gel	( $IV$ )	Solid in gas
		( $V$ )	Liquid in liquid

The correct answer is

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Fog is a colloidal solution of:

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

In which of the sols, the colloidal particles are with negative charge?

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Which of the following is not a homogeneous mixture?

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Critical Micelle concentration for a soap solution is

1.5 \times 10^{- 4} mol L^{- 1}

. Micelle formation is possible only when the concentration of soap solution in

mol L^{- 1}

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Curd belongs to the type of colloid

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Kraft temperature is the temperature:

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Match List I with List II :
List-I List-II

Example of colloids Classification
(a) Cheese (i) dispersion of liquid in liquid
(b) Pumice stone (ii) dispersion of liquid in gas
(c) Hair cream (iii) dispersion of gas in solid
(d) Cloud (iv) dispersion of liquid in solid

Choose the most appropriate answer from the options given below

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Match the following:

(i) Foam	(a) smoke
(ii) Gel	(b) cell fluid
(iii) Aerosol	(c) jellies
(iv) Emulsion	(d) rubber
	(e) froth
	(f) milk

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

An ionic micelle is formed on the addition of:

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Under ambient conditions, which among the following surfactants will form micelles in aqueous solution at lowest molar concentration?

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

The aerosol is a kind of colloid in which

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Sulphur sol is an example of

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Gold sol is not a

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

A colloidal system consisting of a gas dispersed in a solid is called a/an:

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Tyndall effect is more effectively shown by:

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

When silver nitrate solution is added to potassium iodide solution then the sol produced is:

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Identify the correct molecular picture showing what happens at the critical micellar concentration $(CMC)$ of an aqueous solution of a surfactant

Question Image

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

Molar conductivity

(⋀_{m})

of aqueous solution of sodium stearate, which behaves as a strong electrolyte, is recorded at varying concentration(c) of sodium stearate. Which one of the following plots provides the correct representation of micelle formation in the solution?

(Critical micelle concentration (CMC) is marked with an arrow in the figures.)

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Chemistry>Physical Chemistry>Surface Chemistry>Classification of Colloids

When a sulphur sol is evaporated sulphur is obtained. On mixing with water sulphur sol is not formed. The sol is

At high concentration of soap in water soap behaves as a

Important Questions on Surface Chemistry

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