SALTS

Which of the following is not a type of salt?

• Normal salts

• Acid salts

• Double salts

• Soluble salt

Which of the following salts is a not a normal salt?

• NaCl

• K₂SO₄

• NaHCO₃

• Ca(NO₃)₂

Which of the following is not true?

• All nitrate salts are soluble.

• All group I salts and Ammonium salts are soluble.

• All carbonates are not soluble except group I and ammonium salts.

• All sulphates are soluble except Copper (II) sulphate, Barium sulphate and Lead (II) sulphate.

Which of the following salts dissolves only when hot?

• NaCl

• KCl

• CaSO₄

• PbCl₂

Which of the following salts does not exist?

• Aluminium carbonate

• Barium carbonate

• Ammonium carbonate

• Zinc carbonate

Which of the following salts is insoluble?

• Aluminium chloride

• Copper (II) Sulphate

• Sodium chloride

• Calcium carbonate

What is the colour of Lead (II) sulphate?

• Colourless

• Brown

• Blue

• White

What is the colour of hydrated Copper (II) sulphate?

• White

• Blue

• Pink

• Brown

Why is excess Copper (II) oxide added to dilute Sulphuric (VI) acid during the preparation of Copper (II) sulphate?

• To ensure that all the Copper (II) oxide has reacted

• To remove excess Copper (II) oxide

• To ensure that all the acid has reacted

• To ensure that the salt is formed faster

State a reason why filtration is carried out during the preparation of Copper (II) sulphate when copper (II) oxide is added to dilute Sulphuric (VI)?

• To dry Copper (II) Sulphate

• To remove water

• To remove unreacted Copper (II) oxide

• To speed up the rate of reaction