NCERT Class VIII Science Solutions: Chapter 5-Coal and Petroleum Part 1

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Question 1:

What are the advantages of using CNG and LPG as fuels?

Answer:

The advantages of using CNG and LPG as fuels are:

  • They are used as non-polluting fuels to transport vehicles.

  • LPG and CNG both are easy to store and transport.

  • CNG is used for power generation.

  • These fuels have more energy per unit volume.

  • LPG can be used directly for burning in homes and factories.

  • These are easily available and have affordable cost.

  • LPG and CNG has virtually no ash particles left after burning.

Result for CNG and LPG as fuels

CNG and LPG as Fuels

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Question 2:

Name the petroleum product used for surfacing of roads.

Answer:

Bitumen is the petroleum product used for surfacing of roads. It is black, sticky, highly viscous liquids present in crude petroleum separated by fractional distillation.

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Result for Bitumen

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