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

Collodion is a flammable, syrupy solution of nitrocellulose in ether and alcohol. There are two basic types: flexible and non-flexible. The flexible type is often used as a surgical dressing or to hold dressings in place. When painted on the skin, collodion dries to form a flexible nitrocellulose film. While it is initially colourless, it discolours over time. Non-flexible collodion is often used in theatrical make-up.

HARD

Earn 100

The continuous phase contains the dispersed phase throughout, example is

50% studentsanswered this correctly

Important Questions on Surface Chemistry

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

The aerosol is a kind of colloid in which

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

The size of colloidal particles are :

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

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

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

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

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

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

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 :

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

The mass of Haemoglobin in

mg

required to protect from coagulation of

50 mL

of a gold sol on adding

5 mL

10 % NaCl

solution is: (gold number of Haemoglobin

= 0.03

)

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

An ionic micelle is formed on the addition of:

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

Dispersed medium + Dispersion medium =

MEDIUM

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

Question Image

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

Kraft temperature is the temperature:

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

Gold sol is not a

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

The correct answer is

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

The INCORRECT statements below regarding colloidal solutions is :

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

What is collodion?

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Colloids

Comment on the following statement:
Colloid is not a substance but a state of substance.

The continuous phase contains the dispersed phase throughout, example is

Important Questions on Surface Chemistry

Learn and Prepare for any exam you want !