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Let us Separate For Good!

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

Read the following definitions of 'A Mixture' and choose the correct definition.

a)

A mixture is a substance that contains exactly two pure substances mixed together in varying proportion.

b)

A mixture is a substance that contains one impure substance and two pure substances mixed together in varying proportion.

c)

A mixture is a substance that contains two or more pure substances mixed together in varying proportion.

d)

A mixture is a substance that contains two or more impure substances mixed together in varying proportion.

2.

(a)   is a mixture in which the constituents are uniformly distributed and each part of the mixture has the same properties.

3.

Sedimentation & Decantation, Loading and Filtration are methods for

a)

Separation of soluble solids from a liquid

b)

Separation of immiscible liquids from a mixture

c)

Separation of insoluble solids from a liquid

d)

Separation of mixtures by using more than one method

4.

observe the image and choose the separation method shown in the image.

a)

Decantation

b)

Sieving

c)

Sublimation

d)

Threshing

e)

Winnowing

5.

Which method of separation is shown in the image?

a)

Decantation

b)

Sieving

c)

Threshing

d)

Winnowing

e)

Hand-picking

6.

The process of conversion of a solid into vapour without converting into liquid state is called (a)   .

7.

A solution in which no more solute can be added is called (a)   .

8.

The process by which gas changes into liquid is called

a)

Condensation

b)

Evaporation

c)

Distillation

9.

What kind of mixtures are alloys?

a)

Heterogeneous

b)

Homogeneous

c)

None of the above

10.

The extent to which a substance gets dissolved in a liquid is called its (a)   .