Class 8 Coal And Petroleum CBSE Questions & Answers

Class 8 · Coal And Petroleum

This is Science Class 8 Coal and Petroleum CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
The category of coal which is better known as brown coal is :
  • A
    anthracite
  • B
    magnetite
  • C
    bituminous
  • D
    lignite
    Correct
2
That category of coal which has high heat value but very little moisture is :
  • A
    anthracite
  • B
    lignite
  • C
    peat
  • D
    bituminous
    Correct
3
The type of coal that can be used to produce coke is :
  • A
    bituminous
    Correct
  • B
    anthracite
  • C
    lignite
  • D
    magnetite
4
Coke is used to manufacture :
  • A
    natural gas
  • B
    producer gas
    Correct
  • C
    biogas
  • D
    coal tar
5
At the petroleum refinery, crude oil mixture is :
  • A
    filtered
  • B
    ultrafiltered
  • C
    both filtered & ultrafiltered
  • D
    fractionated
    Correct
6
Coal contains mainly :
  • A
    Carbon
    Correct
  • B
    Calcium
  • C
    Coke
  • D
    Charcoal
7
Coal is classified according to:
  • A
    its non carbon content
  • B
    layer of earth surface it is found
  • C
    its carbon content
    Correct
  • D
    time taken in its formation
8
When heated in air, coal burns to produce :
  • A
    Carbonates
  • B
    Carbon dioxide gas
    Correct
  • C
    Chlorofluorocarbons
  • D
    Oxygen gas
9
Coal gas can be obtained from :
  • A
    coal beds & destructive distillation of coal
    Correct
  • B
    only destructive distillation of coal
  • C
    only fractional distillation of coal
  • D
    burning coke with petroleum
10
_____ is the household coal.
  • A
    peat
  • B
    bituminous
    Correct
  • C
    anthracite
  • D
    lignite
11
A pure form of carbon is :
  • A
    producer gas
  • B
    coal gas
  • C
    coal tar
  • D
    coke
    Correct
12
Most inferior quality coal is :
  • A
    Lignite
  • B
    Anthracite
  • C
    Bituminous
  • D
    Peat
    Correct
13
Coal gas is a mixture of :
  • A
    methane, chlorine and hydrogen sulphide
  • B
    hydrogen, methane and carbon monoxide
    Correct
  • C
    methane, oxygen and carbon dioxide
  • D
    methane, nitrogen and sulphur dioxide
14
Anthracite contains upto _____ percent carbon:
  • A
    10 to 20
  • B
    92 to 98
    Correct
  • C
    60 to 80
  • D
    30 to 40
15
Soft coal is _____ :
  • A
    Peat
  • B
    Lignite
    Correct
  • C
    Anthracite
  • D
    Bituminous