Acids, Bases and Salts

Select the salts which are soluble in water.

• Ammonium carbonate

• Barium sulfate

• Lead nitrate

Which of the following copper (II) compounds is LEAST suitable for preparing copper (II) sulfate by reacting with dilute sulfuric acid?

• Oxide

• Chloride

• Carbonate

• Hydroxide

Epsom salt (magnesium sulfate) is widely used. Which of the following statements are true of this salt?

• It relaxes the muscles.

• It sedates the nervous system.

• It is used as a supplement for plant growth.

Which of the following acids is important for healing wounds?

• Lactic

• Ascorbic

• Ethanoic

• Methanoic

Which of the classifications is correct?

• A

• B

• C

• D

Which of the following substances can cause temporary hardness of water?

• Calcium carbonate

• Magnesium carbonate

• Calcium hydrogen carbonate

• Sodium hydrogen carbonate

Sulphuric acid is stronger than ethanoic acid (acetic acid) in aqueous solution because sulphuric acid

• is more corrosive than ethanoic acid

• is obtainable in high concentrations

• causes sugar to char whereas ethanoic acid does not

• ionizes to a greater extent than ethanoic acid

Which of the following is NOT a normal salt?

• K₂CO₃

• KNO₃

• Na₂CO₃

• NaHCO₃

Which compound is one of the MAIN substances responsible for acid rain?

• CO

• CaO

• H₂S

• SO₂

Which compound may be used to counteract the effects of acid rain on the soil?

• CO

• CaO

• H₂S

• SO₂