Separation of Substances (CBSE Class-6 Science): Questions 11 - 17 of 19

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 318 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 250.00 or

Question number: 11

» Separation of Substances » Methods of Separation » Winnowing

MCQ▾

Question

Method used to separate lighter material from heavier one is called as:

Choices

Choice (4) Response

a.

Hand picking

b.

Threshing

c.

Winnowing

d.

Sieving

Question number: 12

» Separation of Substances » Methods of Separation » Evaporation

MCQ▾

Question

Evaporation is used to obtain a:

Choices

Choice (4) Response

a.

Common salt dissolved in water

b.

Solid substance that has dissolved in water

c.

Common salt from sea-water

d.

All a. , b. and c. are correct

Question number: 13

» Separation of Substances » Methods of Separation » Hand Picking

MCQ▾

Question

Method of separation used to separate undesirable substances are:

Choices

Choice (4) Response

a.

Threshing

b.

Sieving

c.

Winnowing

d.

Hand picking

Question number: 14

» Separation of Substances » Why Do We Separate Substances? » To Remove Impurities

MCQ▾

Question

It is necessary to separate substances to:

Choices

Choice (4) Response

a.

Removing the unwanted components

b.

For removing impurities

c.

Separating two components

d.

All a. , b. and c. are correct

Question number: 15

» Separation of Substances » Methods of Separation » Sedimentation, Decantation and Filtration

MCQ▾

Question

By the process of filtration we cannot separate:

Choices

Choice (4) Response

a.

A mixture of sand and water

b.

Mixture of two liquids

c.

Insoluble substances from a liquid

d.

Mixture of chalk and water

Question number: 16

» Separation of Substances » Methods of Separation » Condensation

MCQ▾

Question

Condensation is defined as:

Choices

Choice (4) Response

a.

The conversion of a vapour or gas to a liquid

b.

It is the reverse of evaporation

c.

Change of the physical state of matter from gas phase into liquid phase.

d.

All a. , b. and c. are correct

Question number: 17

» Separation of Substances » Methods of Separation » Sedimentation, Decantation and Filtration

MCQ▾

Question

The solid substance left behind on the filter paper is called as:

Choices

Choice (4) Response

a.

Residue

b.

Filtrate

c.

Sediment

d.

None of the above

Sign In