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Published on: 14/09/2019
Coal and Petroleum
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Questions + Answers key
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1.
Write different uses of coal-tar.
2.
What is the full form of CNG and LPG?
3.
Which gas is used as a starting material for the manufacture of a number of chemicals and fertilisers and why?
4.
Where coal is found in India?
5.
Name the process by which various compounds present in coal tar are separated.
6.
We use all our natural resources forever. Can it be possible?
7.
What do you mean by carbonisation?
8.
Coal, petroleum and natural gas are called fossil fuels. Why?
9.
How can you define coke?
10.
Petroleum is called black gold. Why?
11.
Where was the first oil well drilled in India?
12.
Give two natural resources. Why these are called natural resources.
13.
What does CNG stand for and why is it considered to be a better fuel than petrol
1.
Coal-tar is used as starting material for manufacturing various substances used in everyday life and in industry, like synthetic dyes, drugs, explosives, perfumes, plastics, paints, photographic materials etc.
2.
CNG: Compressed Natural Gas.
LPG: Liquefied Petroleum Gas.
3.
Natural gas is used as a starting material for the manufacture of a number of chemicals (petrochemicals) and fertilisers as it is a source of hydrogen gas needed to manufacture the fertilisers.
4.
In India, coal is found mainly in Bihar, West Bengal, Orissa and Madhya Pradesh.
5.
The process is known as fractional distillation.
6.
No, we cannot use all our natural resources forever. All natural resources are going to exhaust.
7.
The slow process of conversion of dead vegetation into coal is called carbonisation.
8.
Coal, petroleum and natural gas are called fossil fuels because they are formed by the decomposition of the remains of pre-historic plants and animals (fossils) buried under the earth long ago.
9.
Coke is tough, porous and black substance. It is almost pure form of carbon.
10.
Petroleum is called black gold due to its great commercial importance.
11.
It was drilled in Makum in Assam.
12.
Air and water are the natural resources because they are obtained from nature.
13.
CNG stands for Compressed Natural Gas. It is considered to be a better fuel because it is less polluting.
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