کیمیائی صنعتیں

Urea is mainly used as a:

• 1 Fertiliser
• 2 Dye
• 3 Explosive
• 4 Fuel

The Solvay process is used to manufacture:

• 1 Sodium carbonate
• 2 Ammonia
• 3 Urea
• 4 Sulphuric acid

Sulphuric acid is made industrially by the:

• 1 Cracking
• 2 Solvay process
• 3 Contact process
• 4 Haber process

Crude petroleum is separated into fractions by:

• 1 Crystallisation
• 2 Filtration
• 3 Fractional distillation
• 4 Electrolysis

Cement is made by heating limestone with:

• 1 Salt
• 2 Sugar
• 3 Clay
• 4 Coal tar

Ammonia is mainly used to make:

• 1 Plastics only
• 2 Glass only
• 3 Fertilisers
• 4 Bricks

The raw material for making glass is mainly:

• 1 Sand
• 2 Salt
• 3 Coal
• 4 Clay

Which of these is a fossil fuel?

• 1 Wood
• 2 Coal
• 3 Wind
• 4 Sunlight

Natural gas is mainly used as a:

• 1 Fertiliser only
• 2 Medicine
• 3 Colour
• 4 Fuel