NSO Level 1- Science Olympiad (SOF) Class 9: Questions 541 - 545 of 1123

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Question number: 541

» Chemistry » The Nature of Matter

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MCQ▾

Question

The table shows the difference between a suspension and a colloidal solution. Some of the points are incorrect. Find them

The difference between a suspension and a colloidal solution

The table shows the difference between a suspension and a colloidal solution

Point of difference

Suspension

Colloidal solution

1

Particles are not visible by naked eye

Particles are visible by naked eye

2

Solute particles settle down when kept undisturbed

Solute particles do not settle down when kept undisturbed

3

Can be separated by filtration

Can be separated by centrifuging

Choices

Choice (4)Response

a.

3

b.

1 & 2

c.

2

d.

1

Question number: 542

» Mental Ability

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Question

Pointing to a man, Kishor said, “His son is my son’s uncle. ” How is the old man related to Kishor?

Choices

Choice (4)Response

a.

Grandfather

b.

Uncle

c.

Father

d.

Brother

Question number: 543

» Chemistry » Structure of the Atom

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MCQ▾

Question

2814Si. Number of electrons in this element is

Choices

Choice (4)Response

a.

28

b.

14

c.

42

d.

22

Question number: 544

» Biology » Health & Diseases

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MCQ▾

Question

Which among these disease are found nowhere in the world now?

Choices

Choice (4)Response

a.

Chicken pox

b.

Hepatitis

c.

Small pox

d.

Tuberculosis

Question number: 545

» Chemistry » Matter

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MCQ▾

Question

The rate of diffusion is more in liquids than in solids because

Choices

Choice (4)Response

a.

The particles are tightly packed in liquids.

b.

The kinetic energy of liquid particles is less when compared to solid particles.

c.

The particles are free to move in liquids.

d.

There are no particles in liquids.

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