NCERT Based General Studies (GS): Questions 3395 - 3400 of 3947

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Question number: 3395

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

MCQ▾

Question

Chemical formula for Aluminium Sulphate is:

Choices

Choice (4) Response

a.

Al2 (SO4) 3

b.

Al (SO4) 3

c.

Al2 (SO) 3

d.

Question does not provide sufficient data or is vague

Question number: 3396

» Science » Class-9 NCERT » Is Matter Around Us Pure? (Separating the Components of a Mixture)

MCQ▾

Question

A change, which is accompanied by the formation of new substance, and change in energy is called as:

Choices

Choice (4) Response

a.

Chemical change

b.

Physical change

c.

Reversible change

d.

None of the above

Question number: 3397

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

MCQ▾

Question

Points should be followed while writing a chemical formula for ionic compound is;

Choices

Choice (4) Response

a.

Positive ion on the left hand side and negative ions on the right hand side

b.

Ions containing atoms of more than 1 element should be written in bracket

c.

Non-metal should be written on right hand side and metals on the left hand side

d.

Both a. and b. are correct

Question number: 3398

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

MCQ▾

Question

Components of a solution are:

Choices

Choice (4) Response

a.

Solid, liquid or gas

b.

Solute

c.

Solvent

d.

Solute and Solvent

Question number: 3399

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

MCQ▾

Question

Characteristics of elements are:

Choices

Choice (4) Response

a.

Elements are also prepared artificially

b.

Elements occur in nature in a free state or in the form of compound

c.

Element are liquid, gases and solids

d.

All a. , b. and c. are correct

Question number: 3400

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

MCQ▾

Question

Examples of polyatomic ions are:

Choices

Choice (4) Response

a.

Ag+, Na+, Cl- , F-

b.

Carbonate ion (CO32-), Hydroxide (OH-)

c.

Question does not provide sufficient data or is vague

d.

All of the above

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