Match the items in Column A with the items in Column B. Column A Column B 1. Coke a. Used for power generation 2. Coal tar b. An industrial facility for refining petroleum 3. Coal gas c. Unlimited in quantity 4. Exhaustible resources d. Manufacturing of steel 5. Inexhaustible resources e. Fuel in industries 6. Fossil fuel f. Limited in quantity 7. Natural gas g. Naphthalene balls 8. Petroleum refinery h. A natural fuel formed from the remains of living organisms

1. Coke is a grey, hard, and porous fuel with a high carbon content and few impurities, made by heating coal or oil by destructive distillation. It is used in manufacturing of steel. 2. Coal tar is a thick dark liquid which is a by-product of the production of coke and coal gas from coal. And it has unpleasant smell. It is used to obtain naphthalene balls. 3. Coal gas is a mixture of gases chiefly hydrogen, methane, and carbon monoxide, obtained by the destructive distillation of coal and formerly used for lighting and heating. It is used in fuel industry. 4. The amount of exhaustible resources in nature is limited, they can be exhausted by human activities. Examples: Forests, coal, petroleum, minerals, wild life, natural gas, etc. 5. Inexhaustible resources are present in unlimited quantity in nature and are not likely to be exhausted by human activities. 6. A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion. 7. Natural gas, is a naturally occurring hydrocarbon gas mixture consisting primarily of methane . It is used in vehicles in the form of CNG for small scale electric power generation. 8. An oil refinery or petroleum refinery is an industrial process plant where crude oil is transformed and refined into more useful products such as petroleum naphtha, gasoline, diesel fuel etc. Column A Correct match 1. Coke d. Manufacturing of steel 2. Coal tar g. Naphthalene balls 3. Coal gas e. Fuel in industries 4. Exhaustible resources f. Limited in quantity 5. Inexhaustible resources c. Unlimited in quantity 6. Fossil fuel h. A natural fuel formed from the remains of living organisms 7. Natural gas a. Used for power generation 8. Petroleum refinery b. An industrial facility for refining petroleum

Coal tar is a thick, black liquid having an unpleasant smell which is obtained by pyrolysis. It is a mixture of about 200 carbon compounds or organic compounds.

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Study Mate Science Class 8>Chapter 5 - Coal and Petroleum>NUT Cracker>Q IV

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One of the following is used as a fuel in jet aircraft.

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Important Questions on Coal and Petroleum

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Study Mate Science Class 8>Chapter 5 - Coal and Petroleum>NUT Cracker>Q IV

Identify the least polluting fuel of the following.

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Study Mate Science Class 8>Chapter 5 - Coal and Petroleum>NUT Cracker>Q IV

_____ is a dark-brown material formed from burried plant material in low-oxygen conditions.

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Study Mate Science Class 8>Chapter 5 - Coal and Petroleum>NUT Cracker>Q IV

Coal deposits in India occur in:

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Study Mate Science Class 8>Chapter 5 - Coal and Petroleum>NUT Cracker>Q IV

_____ can be easily transported through pipes.

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Study Mate Science Class 8>Chapter 5 - Coal and Petroleum>NUT Cracker>Q V

Match the items in Column A with the items in Column B.

Column A	Column B
1. Coke	a. Used for power generation
2. Coal tar	b. An industrial facility for refining petroleum
3. Coal gas	c. Unlimited in quantity
4. Exhaustible resources	d. Manufacturing of steel
5. Inexhaustible resources	e. Fuel in industries
6. Fossil fuel	f. Limited in quantity
7. Natural gas	g. Naphthalene balls
8. Petroleum refinery	h. A natural fuel formed from the remains of living organisms