Olympiad – Class VIII – Science - Che - Coal and Petroleum

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Question - 1

Which of the following is a fossil fuel?

  • A Petroleum
  • B Wood
  • C Cow dung
  • D Dry leaves

Question - 2

Where does natural gas occur?

  • A Above petroleum oil
  • B Below petroleum oil
  • C Along with petroleum oil
  • D Inside volcanic mountains

Question - 3

What is the common name of petroleum?

  • A Black gold
  • B Yellow gold
  • C Green gold
  • D Blue gold

Question - 4

What are the most common sources of energy used in automobiles?

  • A Wood and coal
  • B Petroleum and diesel
  • C LPG and cow dung
  • D Natural gas and coal

Question - 5

When an oil well is drilled through rocks, which of the following comes out first

  • A Coal gas
  • B Marsh gas
  • C Natural gas
  • D Carbondioxide

Question - 6

By what process is petroleum refined?

  • A Fractional distillation
  • B Destructive distillation
  • C Distillation
  • D All of the above

Question - 7

During fractional distillation, the crude petroleum is heated to

  • A 600°C.
  • B 400-500 0C.
  • C 200°C.
  • D 100°C.

Question - 8

Identify the fuel that leaves more smoke and ash on burning.

  • A Solid fuels
  • B Liquid fuels
  • C Gaseous fuels
  • D Anyone of the above

Question - 9

What is the underlying principle based on which fractional distillation is carried out?

  • A Different densities of each fraction
  • B Different molecular weights of each fraction
  • C Different boiling points of each fraction
  • D Different melting points of each fraction

Question - 10

Which of the following is used as a fuel?

  • A Gasoline
  • B Ether
  • C Tar
  • D Grease