NCERT Based General Studies (GS): Questions 3401 - 3406 of 4138

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Question number: 3401

» Science » Class-9 NCERT » Is Matter Around Us Pure? (Pure Substances)

MCQ▾

Question

A compound is a:

Choices

Choice (4) Response

a.

Compounds are entirely different from those of the constituting elements

b.

Substance having definite melting and boiling point

c.

Homogeneous substance

d.

All a. , b. and c. are correct

Question number: 3402

» Science » Class-9 NCERT » Is Matter Around Us Pure? (Mixture)

MCQ▾

Question

A material which can be separated by physical processes into two or more substances is called as:

Choices

Choice (4) Response

a.

Substance

b.

Materials

c.

Mixture

d.

Molecules

Question number: 3403

» Science » Class-9 NCERT » Atoms and Molecules (Molecular Mass and Mole Concept)

MCQ▾

Question

What is a mole?

Choices

Choice (4) Response

a.

It is a link between mass of atoms and number of atoms.

b.

It is a link between mass of molecules and number of molecules.

c.

Mole is a practical SI unit of the amount of a substance

d.

All a. , b. and c. are correct

Question number: 3404

» Science » Class-9 NCERT » Is Matter Around Us Pure? (Pure Substances)

MCQ▾

Question

Non-metals have:

Choices

Choice (4) Response

a.

Light, soft and brittle

b.

Negative ions, low melting and boiling points

c.

Bad conductors of heat and electricity

d.

All a. , b. and c. are correct

Question number: 3405

» Science » Class-9 NCERT » Atoms and Molecules (Ion)

MCQ▾

Question

An element A has valency of 3 the formula for its phosphates, sulphates and oxides are:

Choices

Choice (4) Response

a.

APO4, A (SO4) 3, AO2

b.

APO4, A2 (SO4) 3, A2O3

c.

APO4, A (SO4) 3, AO

d.

None of the above

Question number: 3406

» Science » Class-9 NCERT » Is Matter Around Us Pure? (Suspension)

MCQ▾

Question

Heterogeneous mixture in which solid particles are dispersed in a liquid or a gas which will settle on standing is called as:

Choices

Choice (4) Response

a.

Colloids

b.

Solutions

c.

Suspensions

d.

Question does not provide sufficient data or is vague

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