Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

EASY

Earn 100

Have you ever observed carefully the syrup that you take for cough? Why do you shake it before consuming? Is it a suspension or colloidal solution?

Important Questions on Is Matter around Us Pure?

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Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

Which one of the following will show Tyndall Effect.

EASY

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

Fog is a colloidal solution of

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Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

Solution is

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Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

A solution is prepared by dissolving

60 g

of sugar in

480 g

of water. Concentration in terms of mass by a mass percentage of the solution is:

MEDIUM

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

Milk is the example of the following type of colloid

EASY

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

Which one of the following is solution?

MEDIUM

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

Which of the following statement is true about the solubility of a substance?

MEDIUM

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

Gas used for precipitation of pure common salt

(NaCl)

from saturated solution of common salt is

MEDIUM

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

If

110 g

of salt is present

550 g

of the solution then the concentration of the solution will be:

MEDIUM

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

What is the mass of oxygen required to react completely with

15 g

of

H_{2}

gas to form water:

EASY

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

_____ is not an example of Aerosol.

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Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

Take 30g of common salt and dissolve it 70g of water, Find the concentration of the solution in terms of weight percent.

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Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

Dispersed medium + Dispersion medium =

HARD

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

A mixture of sulphur and carbon disulphide is:

MEDIUM

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

Which of the following is/are examples of suspension?

HARD

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

The teacher instructed three students A, B and C to prepare

50 %

(mass/volume) solution of sodium hydroxide (

NaOH

). 'A' dissolved

50 g

of

NaOH

in

100 ml

of water, 'B' dissolved

50 g

of

NaOH

in

100 g

water and ‘C’ dissolved

50 g

NaOH

in water to make

100 ml

of solution. Which one of them has made the desired solution?

MEDIUM

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

The particle size of solute in a true solution is of the order of -

HARD

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

The concentration of solution is the mass of the solute in grams, which is present in -

MEDIUM

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

Which of the following will show the Tyndall effect?

HARD

Science>Chemistry>Is Matter around Us Pure?>Suspensions and Colloids

The percentage of water of crystallisation in washing soda is

60.9 %

.