NSO Level 1- Science Olympiad (SOF) Class 9: Questions 540 - 544 of 1123

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Question number: 540

» Biology » Improvement in Food Resources

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MCQ▾

Question

During a disease outbreak, which of the following measure taken can completely prevent the infection from attacking the poultry?

Choices

Choice (4) Response

a.

Proper cleaning

b.

Disinfectant spraying

c.

Sanitation

d.

Vaccination

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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MCQ▾

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

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