NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1934 - 1941 of 2028

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Question number: 1934

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which of the following is the chemical formula of rock salt?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1935

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which of the following can only be formed by non-metals?

Choices

Choice (4) Response

a.

Anions & Cations

b.

Do not form ions

c.

Cation

d.

Anions

Question number: 1936

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which one of the following properties belongs to non-metals?

Choices

Choice (4) Response

a.

Low melting point

b.

Low densities

c.

Poor Conductivity

d.

All a. , b. and c. are correct

Question number: 1937

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

is the chemical formula of?

Choices

Choice (4) Response

a.

Bauxite

b.

Haematite

c.

Cuprite

d.

Monazite

Question number: 1938

» Chemistry » Combustion and Flame

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MCQ▾

Question

Which of the following is soda-acid fire extinguisher?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1939

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which of the following metal vigorously react with HCl and produce salt and is?

Choices

Choice (4) Response

a.

Na

b.

Zn

c.

Sn

d.

Pb

Question number: 1940

» Chemistry » Coal and Petroleum

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MCQ▾

Question

Which of the following is an effective source of energy?

Choices

Choice (4) Response

a.

Natural gas & coal

b.

LPG and cow dung

c.

Wood and Coal

d.

Petroleum and coal

Question number: 1941

» Chemistry » Coal and Petroleum

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MCQ▾

Question

Which of the following has the lowest percentage of carbon?

Choices

Choice (4) Response

a.

Bituminous

b.

Lignite

c.

Peat

d.

Anthracite

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