Process of converting precipitate into colloidal solution

Process of converting a colloidal solution into precipitate

Process of converting soluble particles to form colloidal solution

Process of bringing colloidal molecule into solution

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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What are emulsions? Give an example.

Important Questions on Surface Chemistry

HARD

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

The correct statement(s) about surface properties is(are)

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

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>Emulsions

The most appropriate method of making egg-albumin sol is:

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

As per Hardy-Schulze formulation, the flocculation values of the following for ferric hydroxide sol are in the order:

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

Fog is a colloidal solution of:

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

The correct option among the following is.

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

Among the following, the correct statement is:

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

What happens when a beam of light is passed through a colloidal solution?

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

For coagulation of arsenious sulphide sol, which of the following salt solutions will be most effective?

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

The coagulating power of electrolytes having ions

{Na}^{+}

{Al}^{3 +}

and

{Ba}^{2 +}

for arsenic sulphide sol increases in the order,

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

How does the precipitation of colloidal smoke take place in Cottrell precipitator?

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

Which of the following processes is responsible for the digestion of fats in the intestines?

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

Colloidal solution commonly used in treatment of skin diseases is:

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

Peptization is a:

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

In the coagulation of a positive sol, the flocculating power of the ions

{PO}_{4}^{3 -}, {SO}_{4}^{2 -}

and

{Cl}^{-}

decreases in the order

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

Which of the following is used for the preparation of colloids ?

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

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>Emulsions

The coagulation values in millimoles per litre of the electrolytes used for the coagulation of

A s_{2} S_{3}

are given below,

I .

(N a C l) = 52

II .

(B a C l_{2}) = 0.69

III .

(M g S O_{4}) = 0.22

The correct order of their coagulating power is

MEDIUM

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

Given below are two statements:

Statement I : Emulsions of oil in water are unstable and sometimes they separate into two layers on standing.

Statement II : For stabilisation of an emulsion, excess of electrolyte is added.

In the light of the above statements, choose the most appropriate answer from the options given below :

EASY

Chemistry>Physical Chemistry>Surface Chemistry>Emulsions

In which emulsion coloured droplets are obtained when oil soluble dye is added to it?

What are emulsions? Give an example.

Important Questions on Surface Chemistry

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