CBSE Questions for Class 8 Chemistry Coal And Petroleum Quiz 4 - MCQExams.com

Which of the following names represents the foul smelling, black, thick, viscous liquid obtained from destructive distillation of coal?
  • Coke
  • Coal tar
  • Coal gas
  • None of these
While leakage in L.P.G. gas cylinders, gas which gives fowl smell is:
  • Butane
  • Propane
  • Methane
  • Ethyl mercaptan
Choose the incorrect statement among the following.
  • Many useful substances are obtained from petroleum and natural gas. These are termed as 'petrochemicals'
  • Hydrogen gas obtained from natural gas is used in the production of fertilizers
  • Due to the great commercial importance of petroleum, it is also called 'black gold'
  • Natural gas is stored under low pressure as compressed natural gas (CNG)
Coal is a fossil fuel and it cannot be prepared in a laboratory or industry. Because of the formation of coal:
a. is a very slow process.
b. needs very low pressure and low temperature.
c. needs very high pressure and high temperature.
d. causes air pollution.
Select the correct alternatives.
  • a,  c and d
  • b and d
  • c and a
  • d and c
Which of the following is used as an anti -knocking compound?
  • TEL
  • $$C_2H_5OH$$
  • Glyoxal
  • Freon
Rocket fuel is:
  • Ammonium phosphate
  • Liqiud oxygen
  • Liqiud ammonia
  • Solid $$KCl$$
The fraction of petroleum used as jet fuel is:
  • petrol
  • kerosene
  • diesel
  • alcohol
Naphthalene balls used to repel moths and other insects are obtained from X. These days Y, a petroleum product is used in place of X for metalling the roads. What are X and Y respectively?
  • Coke, coal
  • Coal, coke
  • Bitumen, coal tar
  • Coal tar, bitumen
Which of the following is used for refining of petroleum?
  • Steam distillation
  • Distillation under reduced pressure
  • Solvent extraction
  • Fractional distillation
Which of the following represents the foul smelling, black, thick, viscous liquid obtained from destructive distillation of coal?
  • Coke
  • Coal tar
  • Coal gas
  • None of these
The compound obtained from coal is/are:
  • coke
  • coal tar
  • coal gas
  • all of the above
Which of these is not a fossil fuel or obtained from fossil fuels?
  • Coal
  • LPG
  • Biogas
  • All of these are fossil fuels
Fossils are mostly present in which of the following rocks?
  • Igneous rocks
  • Sedimentary rocks
  • Metamorphic rocks
  • Coarse-grained rocks
Which of the following is an example of fossil fuel?
  • Coal gas
  • Coke
  • Natural gas
  • Producer gas
The chemical added to LPG to help detect its leakages is:
  • isobutene
  • ethylamine
  • methyl mercaptan
  • ethyl mercaptan
CNG means
  • Common Natural Gas
  • Compressed Natural Gas
  • Common Natural Gasoline
  • Compressed Natural Gasoline
The strong smelling substance added to LPG, to help detect its leakage, is:
  • ethyl mercaptan
  • ethanol
  • ethanal
  • ethyl butane
The fuel used as aviation fuel in jet aircrafts is a special grade of _________ .
  • diesel
  • kerosene
  • petrol
  • none of these
The main constituent of LPG is/are:
  • methane
  • butane
  • propane
  • Both B and C
Coal gas is mixture of:
  • $$C_4H_{10}+H_2+CO_2$$
  • $$CH_4+H_2+CO_2$$
  • $$CH_4+H_2+CO$$
  • $$C_2H_6 + H_2 + CO_2$$
Which of the following contains methane, hydrogen and carbon dioxide?
  • Producer gas
  • Water gas
  • Coal gas
  • Bio gas
Which derivative of coal is more viscous in nature?
  • Coke
  • Coal tar
  • Coal gas
  • Graphite
Which of the following cannot undergo carbonization?
  • Wood
  • Dead vegetation
  • Minerals
  • Both A and B
Which of the following is not characteristic of coke?
  • Hard
  • Porous
  • High carbon content
  • Soft
Coal tar is used in manufacture of _________.
  • synthetic dyes
  • drugs
  • explosives
  • all of these
Coal tar has an _________ smell.
  • unpleasant
  • pleasant
  • Both (a) & (b)
  • None of these
What happens during carbonisation?
  • Conversion of organic substance to carbon
  • Conversion to carbon dioxide
  • Conversion of carbon to diamond
  • Conversion of carbon to water
Which of the following is not required for the formation of coal?
  • Dead organisms
  • Dead vegetation
  • Presence of oxygen
  • High pressure
Which is used in extraction of metals?
  • Coal gas
  • Coal tar
  • Coke
  • Petrol
Among the following, which is not the component of coal gas?
  • Methane
  • Hydrogen
  • Oxygen
  • Carbon dioxide
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