NCERT Class 10 Science-Sources of Energy[Conventional Sources of Energy] [NCERT Based General Studies (GS)]: Questions 1 - 6 of 21

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Question 1

Question MCQ▾

Carbonisation of wood into coal takes place in the presence of:

Choices

Choice (4)Response

a.

High temperature

b.

Absence of air

c.

High pressure

d.

All a., b. and c. are correct

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Question 2

Question MCQ▾

Destructive distillation of wood is:

Choices

Choice (4)Response

a.

Breakdown of the complex structure of wood into simpler substances

b.

Breakdown of wood into simpler substances in presence of heat

c.

Breakdown of wood into simpler substance in absence of heat

d.

Breakdown of the complex structure of wood into simpler substances by heating it in the absence of air

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Question 3

Question MCQ▾

Petrified remains of the prehistoric animals or plants inside the earth are called as:

Choices

Choice (4)Response

a.

Coal

b.

Fossil Fuels

c.

Petroleum

d.

Fuel

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Question 4

Question MCQ▾

Which fossil fuel is supplied directly from the oil wells?

Choices

Choice (4)Response

a.

LPG

b.

CNG

c.

Natural Gas

d.

Question does not provide sufficient data or is vague

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Question 5

Question MCQ▾

Dark-coloured fluorescent liquid which occurs deep inside the two layers of non-porous rocks is called as:

Choices

Choice (4)Response

a.

Diesel, fuel oil

b.

Kerosene

c.

Petroleum

d.

Petrol

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Question 6

Question MCQ▾

Uses of coal are:

Choices

Choice (4)Response

a.

Source of fuel and heat energy

b.

Manufacturing, coke, coal tar and coal gas

c.

Sources of organic compounds

d.

All a., b. and c. are correct

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