Chemistry [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 56 - 63 of 208

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Question 56

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Question

MCQ▾

An example of homogeneous mixture is ________.

Choices

Choice (4)Response

a.

Starch and sugar

b.

Alcohol and water

c.

Graphite and charcoal

d.

Calcium carbonate and calcium bicarbonate

Question 57

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Question

MCQ▾

Small liquid droplets dispersed in another liquid is called ________.

Choices

Choice (4)Response

a.

Gel

b.

Suspension

c.

True solution

d.

Emulsion

Question 58

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Question

MCQ▾

When a beam of light is passed through a colloidal solution, it ________.

Choices

Choice (4)Response

a.

Is scattered

b.

Absorbed

c.

Is reflected

d.

Transmitted

Question 59

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Question

MCQ▾

Which kind of colloidal system a gel is:

Choices

Choice (4)Response

a.

Gas dispersed in solid

b.

Liquid dispersed in gas

c.

Liquid dispersed in solid

d.

Solid dispersed in gas

Question 60

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Question

MCQ▾

Which is not a colloidal system?

Choices

Choice (4)Response

a.

Blood

b.

Urea dissolved in water

c.

Milk

d.

Ice-cream

Question 61

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Question

MCQ▾

Colloidal solution is purified by ________.

Choices

Choice (4)Response

a.

Coagulation

b.

Filtration

c.

Dialysis

d.

Electro- osmosis

Question 62

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Question

MCQ▾

Cheese is an example of ________

Choices

Choice (4)Response

a.

Gel

b.

Foam

c.

Solid

d.

Emulsion

Question 63

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Question

MCQ▾

Which of the following is an element?

Choices

Choice (4)Response

a.

Silica

b.

Magnesia

c.

Graphite

d.

Glass