NSTSE (National Science Talent Search Exam- Unified Council) Class 6: Questions 1729 - 1735 of 2029

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Question number: 1729

» Chemistry » Water

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MCQ▾

Question

Name of CO + H2 compound

Choices

Choice (4)Response

a.

Hypochlorus acid

b.

Carbon mono oxide

c.

Carbon dioxide

d.

Water gas

Question number: 1730

» Chemistry » Water

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MCQ▾

Question

What is the product when metallic oxides react with water?

Choices

Choice (4)Response

a.

Salt and Water

b.

Water

c.

Alkalis

d.

Salt

Question number: 1731

» Chemistry » Air Around Us

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MCQ▾

Question

Smoke present in air due to burning of fossil fuel. It carries minute particle that cause

Choices

Choice (4)Response

a.

Asthma

b.

Bronchitis

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 1732

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Separation of mixture depends upon.

Choices

Choice (4)Response

a.

Shape, color and size

b.

Type of mixture

c.

Melting and Boiling Point

d.

All a. , b. and c. are correct

Question number: 1733

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Which of the following gas is easily soluble in water?

Choices

Choice (4)Response

a.

Carbon di-oxide

b.

Hydrogen

c.

Nitrogen

d.

Ammonia

Question number: 1734

» Chemistry » Sorting Materials into Groups

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MCQ▾

Question

Evaporation is the process in which

Choices

Choice (4)Response

a.

Solid changes to gas

b.

Gas changes to liquid

c.

Liquid changes to solid

d.

Liquid changes to gas

Question number: 1735

» Chemistry » Air Around Us

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MCQ▾

Question

Radon is radioactive and it belongs to the family of ________ gases.

Choices

Choice (4)Response

a.

Noble

b.

Oxygen

c.

Halogen

d.

All of the above

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