Ore of aluminum is called

  • hematite
  • chalcopyrite
  • bauxite
  • halite

Number of carbon atoms per molecule in naphtha are

  • 1 to 4
  • 5 to 10
  • 8 to 12
  • 10 to 16

Number of carbon atoms per molecule in bitumen are

  • 14 to 20
  • 20 to 50
  • 50 to 70
  • more than 70

Solvay process is used to make

  • potassium carbonate
  • sodium carbonate
  • NaCl
  • NaOH

The raw materials for the Solvay process include

  • ammonia
  • brine
  • lime stone
  • all of above

The boiling point of kerosene is

  • below 20 °C
  • 35 °C to 70 °C
  • 70 °C to 120 °C
  • 170 °C to 250 °C

The first step of metallurgy is

  • crushing, grinding or pulverizing of the ore
  • concentration of the ore
  • extraction of metal
  • refining of metal

The color of crude oil is

  • brownish black
  • white
  • transparent
  • light yellow

The second step of the Solvay process is

  • preparation of ammonical brine
  • carbonation
  • filtration
  • calcination

The first step of the Solvay process is

  • preparation of ammonical brine
  • carbonation
  • filtration
  • calcination

The fifth step of the Solvay process is

  • preparation of ammonical brine
  • carbonation
  • preparation of carbon dioxide and slaked lime
  • recovery of ammonia

Ore of mercury is called

  • galena
  • zinc blende
  • cinnabar
  • chromite

The process of smelting involves the

  • reduction of metal oxides
  • oxidation of minerals
  • oxidation of metals
  • melting of metals

Which of the following is used as cylinder gas for cooking?

  • Liquefied petroleum gas (LPG)
  • petrol
  • naphtha
  • kerosene

When earth's crust is drilled, the hydrocarbon came out first is

  • petroleum
  • methane
  • ethane
  • butane

The fourth step of the Solvay process is

  • preparation of ammonical brine
  • carbonation
  • filtration
  • calcination

The process in which metal is separated from its ore and prepared for use is called

  • metallurgy
  • mining
  • crushing
  • Solvay process

Which of the following is used as a fuel for jet planes?

  • Liquefied petroleum gas (LPG)
  • petrol
  • naphtha
  • kerosene

Ore of copper is called

  • hematite
  • chalcopyrite
  • bauxite
  • halite

Number of carbon atoms per molecule in fuel oil is

  • 14 to 20
  • 20 to 50
  • 50 to 70
  • 70 to 90
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