Chemistry [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 49 - 55 of 208

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Question 49

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Question

MCQ▾

Which of the following form a colloidal solution in water?

Choices

Choice (4)Response

a.

Starch

b.

Barium Nitrate

c.

NaCl

d.

Glucose

Question 50

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Question

MCQ▾

Metal which exist in liquid state at room temperature is ________

Choices

Choice (4)Response

a.

Mercury

b.

Calcium

c.

Sodium

d.

Potassium

Question 51

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Question

MCQ▾

Colloidal solution containing a liquid dispersed in liquid is ________.

Choices

Choice (4)Response

a.

Smoke

b.

Dust

c.

Emulsion

d.

Gels

Question 52

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Question

MCQ▾

Smoke is a dispersion of ________.

Choices

Choice (4)Response

a.

A solid in gas

b.

A liquid in gas

c.

A gas in solid

d.

A gas in gas

Question 53

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Question

MCQ▾

The colloidal solutions are ________

Choices

Choice (4)Response

a.

Suspensions of one phase in another

b.

Two phase systems

c.

Contain only water soluble particles

d.

Are formed by solids in liquids.

Question 54

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Question

MCQ▾

Which of the following is not a compound?

Choices

Choice (4)Response

a.

Common salt

b.

Brass

c.

Sugar

d.

Marble

Question 55

Edit

Question

MCQ▾

Which of the following statements is not correct?

Choices

Choice (4)Response

a.

The space between the particles of a gas are the largest

b.

The solid state is the most compact state of matter.

c.

The particles of gas move in a zig-zag manner

d.

Matter is continuous in nature