Question

IV. Very Short Answer Questions
1. Give an example of luminous flame.
2. Name the fuel which is gradually replacing petrol and diesel in automobiles.
3. Name a poisonous gas produced during incomplete combustion of fuels.
4. Define acid rain.
5. Name one fuel which burns without producing a flame.​

Answer 1

Answer:

1. Candles
2. Compressed natural gas (CNG)
3. Carbon monoxide
4. Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms.
5. Coal

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Answer 2

Answer:

1 - Candle

2 - CNG ( Compressed natural gas )

3 - Carbon monoxide

4 - Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions. It can have harmful effects on plants, aquatic animals, and infrastructure.

5 - Coal

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