NSO Level 1- Science Olympiad (SOF) Class 9: Questions 875 - 880 of 1123

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Question number: 875

» Chemistry » The Nature of Matter

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MCQ▾

Question

A colloidal solution is a heterogeneous solution but it appears to be homogeneous. Which of the following statements support this fact?

Choices

Choice (4) Response

a.

The particles are comparatively smaller in size

b.

The particles are uniformly spread throughout the solution

c.

Both a. and b. are correct

d.

None of the above

Question number: 876

» Chemistry » Matter

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MCQ▾

Question

The rate of diffusion is depended on

Choices

Choice (4) Response

a.

temperature

b.

state of the matter

c.

quantity of matter

d.

All a. , b. and c. are correct

Question number: 877

» Biology » Tissues

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MCQ▾

Question

A permanent tissue slide shows loosely packed thin walled cells with large air space in between. The slide contains:

Choices

Choice (4) Response

a.

Nerve cells

b.

Sclerenchyma cells

c.

Parenchyma cells

d.

Collenchyma cells

Question number: 878

» Mental Ability

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MCQ▾

Question

A train travels at an average of 60 miles per hour for hours and then travels at a speed of 90 miles per hour for hours. How far did the train travel in the entire hours?

Choices

Choice (4) Response

a.

200 miles

b.

280 miles

c.

260 miles

d.

230 miles

Question number: 879

» Chemistry » Atoms & Molecules

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MCQ▾

Question

Calculate the number of moles for of chlorine (finding mole from mass)

Choices

Choice (4) Response

a.

6

b.

4

c.

3

d.

2

Question number: 880

» Chemistry » The Nature of Matter

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MCQ▾

Question

Which of the following method is used to separate acetone from a mixture of acetone and water?

Choices

Choice (4) Response

a.

Filtration

b.

Distillation

c.

Sublimation

d.

Chromatography

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