NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1848 - 1856 of 2028

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Question number: 1848

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Decay of metal by water, oxygen and other chemicals is called?

Choices

Choice (4) Response

a.

Amalgamation

b.

Oxidation

c.

Carbonisation

d.

Corrosion

Question number: 1849

» Chemistry » Coal and Petroleum

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MCQ▾

Question

Which of the following is involved to the process of “carbonisation”?

Choices

Choice (4) Response

a.

Coal

b.

Coke

c.

Petroleum

d.

Hydrocarbons

Question number: 1850

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

How many types of oxides will be formed when phosphorus combined with oxygen?

Choices

Choice (4) Response

a.

Four

b.

One

c.

Two

d.

Three

Question number: 1851

» Chemistry » Combustion and Flame

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Question

From which of the following, synthetic petroleum is artificially produced.

Choices

Choice (4) Response

a.

Coal

b.

Wood

c.

L. P. G

d.

Petroleum

Question number: 1852

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Which of the following non-metal is so hard in nature?

Choices

Choice (4) Response

a.

Diamond

b.

Chlorine

c.

Graphite

d.

Sulphur

Question number: 1853

» Chemistry » Coal and Petroleum

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MCQ▾

Question

Water gas is a mixture of?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1854

» Chemistry » Metals and Non-Metals

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MCQ▾

Question

Name the metal that involved in the process of “Tinning”?

Choices

Choice (4) Response

a.

Copper

b.

Zinc

c.

Tin

d.

Magnesium

Question number: 1855

» Chemistry » Coal and Petroleum

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MCQ▾

Question

Petroleum is also known as?

Choices

Choice (4) Response

a.

Fossil fuel

b.

Black gold

c.

Hydrocarbon

d.

All a. , b. and c. are correct

Question number: 1856

» Chemistry » Combustion and Flame

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MCQ▾

Question

When 1 gram of fuel is completely burned, the heat produced is termed as?

Choices

Choice (4) Response

a.

Heat capacity

b.

Vapour density

c.

Boiling point

d.

Calorific value

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