NSO Level 1- Science Olympiad (SOF) Class 9: Questions 645 - 651 of 1123

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Question number: 645

» Chemistry » Matter

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MCQ▾

Question

Large volume of LPG and CNG can be filled in small cylinders as

Choices

Choice (4) Response

a.

Gases need no space to occupy

b.

Gases are highly compressible

c.

Gases have less weight

d.

Gases do not have volume

Passage

Direction: Observe the figure and answer the questions below

This technique of separation of components from a mixture

This Technique of Separation of Components from a Mixture

This technique of separation of components from a mixture

Question number: 646 (1 of 2 Based on Passage) Show Passage

» Chemistry » The Nature of Matter

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MCQ▾

Question

This technique of separation of components from a mixture is called

Choices

Choice (4) Response

a.

Double filtration

b.

Chromatography

c.

Fractional distillation

d.

Sublimation

Question number: 647 (2 of 2 Based on Passage) Show Passage

» Chemistry » The Nature of Matter

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MCQ▾

Question

The use of beeds in fractionating column is

Choices

Choice (4) Response

a.

Provides space for the vapour to cool and condense rapidly

b.

Decreases the temperature of the vapour

c.

Question does not provide sufficient data or is vague

d.

All of the above

Question number: 648

» Physics » Motion

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MCQ▾

Question

A bus is travelling with a speed of . While converting the speed in to m/s, we get

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 649

» Biology » Tissues

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MCQ▾

Question

Which cell does not have perforated cell wall?

Choices

Choice (4) Response

a.

Vessels

b.

Companion cells

c.

Sieve tubes

d.

Tracheids

Question number: 650

» Biology » Natural Resources

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MCQ▾

Question

Life on Earth depends on resources like

Choices

Choice (4) Response

a.

Water

b.

Soil

c.

Solar energy

d.

All a. , b. and c. are correct

Question number: 651

» Chemistry » The Nature of Matter

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MCQ▾

Question

This is an arrangement to separate the components of a mixture. This method is called

Mixture of acetone and water

Mixture of Acetone and Water

Mixture of acetone and water

Choices

Choice (4) Response

a.

Filtration

b.

Sublimation

c.

Chromatography

d.

Distillation

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