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Question-1
The useful products of destructive distillation of coal are:

(A) Coke, Coal tar, Coal gas and ammonia compounds	(B) Coke, Charcoal, Coal tar and Coal gas
(C) Coal tar, Coal gas and LPG	(D) Petrol, Coke, Coal tar and Coal gas.

Question-2
Which of the following is regarded as the best variety of coal?

(A) Lignite	(B) Anthracite
(C) Peat	(D) Bituminous

Question-3
CNG is stored under?

(A) Power generation	(B) Electric Generators
(C) Solvent	(D) Solution

Question-4
What is the mail source of Petroleum?

(A) Domestic animals	(B) Organisms in sea
(C) Wild animals	(D) Insects

Question-5
Kerosene is used as fuel

(A) In home and industry	(B) For heavy motor vehicles
(C) For stove, lamps and jet aircraft	(D) For electric generator

Question-6
The slurry residue after obtaining biogas is used as?

(A) Pesticide	(B) Manure
(C) Insecticide	(D) None

Question-7
Gobar gas produced from animal and plant waste contains?

(A) Ethane	(B) Methane
(C) Propane	(D) Butane

Question-8
In fractional distillation of petroleum, What happens to the the vapours with highest boiling point?

(A) Condense in upper most portion	(B) Condense in lower most portion
(C) Condense in middle portion	(D) none of these

Question-9
What is known as carbonisation?

(A) Slow conversion of dead vegetation Into coal	(B) Deposition of soil
(C) falling of trees	(D) None of these

Question-10
Coal is formed by the process of?

(A) Carbonisation	(B) Distillation
(C) Vaporisation	(D) Evaporation

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Std 8

CBSE

Practice in Related Chapters
Combustion,flame and fuel
Coal and Petroleum
Synthetic Fibres and Plastics
Pollution of Air and Water
Metals and Non-Metals