Which of the following used in paving roads and making roofing material?

  • diesel
  • lubricating oil
  • fuel oil
  • bitumen

The process of separating metal from ore is called

  • magnetic separation
  • floatation process
  • metallurgy
  • cyclone separation

Process in which metal ions are reduced to free metals is called

  • roasting
  • smelting
  • Bessemerization
  • concentration

Ore of iron is called

  • hematite
  • chalcopyrite
  • bauxite
  • halite

Ore of silicon is called

  • galena
  • zinc blende
  • Cassiterite
  • silica

Which of the following is used as a fuel for motor cars and vehicles?

  • Liquid Petroleum Gas (LPG)
  • petrol
  • naphtha
  • kerosene
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