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)

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

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The volume of a colloidal particle, $V_{C}$ as compared to the volume of a solute particle in a true solution $V_{S},$ could be

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Important Questions on Surface Chemistry

EASY

Chemistry>Physical Chemistry>Surface Chemistry>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

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

The aerosol is a kind of colloid in which

EASY

Chemistry>Physical Chemistry>Surface Chemistry>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}

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

Kraft temperature is the temperature:

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

The INCORRECT statements below regarding colloidal solutions is :

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Chemistry>Physical Chemistry>Surface Chemistry>Colloids

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

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MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>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.)

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

Curd belongs to the type of colloid

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

The size of colloidal particles are :

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

Fog is a colloidal solution of:

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

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

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

A sample of red ink (a colloidal suspension) is prepared by mixing eosine dye, egg white,

HCHO

and water. The component which ensures stability of the ink sample is :

EASY

Chemistry>Physical Chemistry>Surface Chemistry>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