Q.1
Crude oil is fed into the fractionating column...
  • at high pressure
  • with a catalyst
  • as a vapour
  • with water
Q.2
Hydrocarbons with the smallest molecules have the...
  • lowest boiling points
  • lowest flammability
  • lowest volatility
  • highest viscosity
Q.3
Fractional distillation uses which physical property to separate the substances in crude oil?
  • Melting point
  • Boiling point
  • Tensile strength
  • Freezing point
Q.4
Which of the following is a saturated hydrocarbon that could be found in diesel oil?
  • C4H10
  • C16H32
  • C17H36
  • C18H38O
Q.5
Which of these compounds catches fire most easily?
  • C3H8
  • C8H18
  • C12H26
  • C16H34
Q.6
Petrol...
  • has a higher boiling point than diesel oil
  • is a thinner liquid than diesel oil
  • ignites less easily than kerosene
  • has larger molecules than kerosene
Q.7
Which of the following is the thickest liquid?
  • C3H8
  • C8H18
  • C12H26
  • C16H34
Q.8
Which of these compounds is collected at the top of the fractionating column?
  • C3H8
  • C8H18
  • C12H26
  • C16H34
Q.9
Which of these compounds has the highest boiling point?
  • C3H8
  • C8H18
  • C12H26
  • C16H34
Q.10
Crude oil contains mainly saturated hydrocarbons called...
  • haloalkanes
  • alkenes
  • alkanes
  • cycloalkanes
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