8th Science Ch.5.Coal and Petroleum Solved MCQ type questions

8th  Science CBSE Test paper Solved Chapter 5 Coal and Petroleum

1 mark Questions

1. The slow process of conversion of dead vegetation into coal is called ________

Ans:Carbonization

2.Naphthalene balls are obtained from __________

Ans: Coal tar

3.A petroleum product known as __________ is used for metalling the roads.

Ans: Bitumen

4. Natural gas is stored under high pressure as _________

Ans: CNG

5.__________ is a cleaner fuel.

Ans: CNG

6.---------is used as a fuel in jet aircraft.

Ans: Kerosene oil

7.------- is the petroleum gas which has been liquefied under pressure.

Ans: LPG

8. The major constituent of CNG is ___________

Ans: Metane

9. ___________ is the best known reinforcing agent in rubber industry

Ans: Carbon black

10.The quality of gasoline is generally expressed in terms of _________

Ans: Calorific value