MEDIUM
8th CBSE
IMPORTANT
Earn 100

Coke is a product obtained by the processing of coal. Which of these is a by-product of making coke?

50% studentsanswered this correctly

Important Questions on Coal and Petroleum

MEDIUM
8th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class VIII>Chapter 3 - Coal and Petroleum>Exercise>Q 11
Which of these conditions is required for the formation of natural gas?
 
MEDIUM
8th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class VIII>Chapter 3 - Coal and Petroleum>Exercise>Q 12
Which of these petroleum products is used for heavy motor vehicles?
MEDIUM
8th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class VIII>Chapter 3 - Coal and Petroleum>Exercise>Q 13
What is the advantage of using CNG instead of petrol in light motor vehicles?
HARD
8th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class VIII>Chapter 3 - Coal and Petroleum>Exercise>Q 14

Fill in the blanks by choosing an appropriate option.

_____ are used in the manufacture of detergents, fibres, polythene and other man-made plastics. _____ obtained from natural gas, is used in the production of fertilisers (urea). Petroleum is also called _____ due to its great commercial importance.

HARD
8th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class VIII>Chapter 3 - Coal and Petroleum>Exercise>Q 15
Which of the following is not a product of destructive distillation of coal?
HARD
8th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class VIII>Chapter 3 - Coal and Petroleum>Exercise>Q 16

Give reason for the following:

Water should not be thrown over a fire caused by petrol.

HARD
8th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class VIII>Chapter 3 - Coal and Petroleum>Exercise>Q 17
Why is petroleum called 'black gold'?
HARD
8th CBSE
IMPORTANT
Science Textbook of Competency Based Questions for Class VIII>Chapter 3 - Coal and Petroleum>Exercise>Q 18

In a petroleum refinery, the component of crude oil that has the highest boiling point condenses at the highest/lowest part of the fractionating column. Why ?