Chemistry Quiz: Acids and Bases

What gas is produced when acids react with reactive metals?

• Nitrogen

• Carbon dioxide

• Oxygen

• Hydrogen

How can you test for the presence of hydrogen gas?

• Using lit splint

• Using litmus paper

• Using a thermometer

• Using a matchstick

Which of the following is a property of bases?

• Turn red litmus paper blue

• Bitter taste and soapy feel

• React with reactive metals

• Turn blue litmus paper red

What do aqueous solutions of acids contain?

• H+

• OH-

• Cl-

• Na+

Which statement correctly describes the difference between bases and alkalis?

• Bases are soluble in water

• Alkalis produce hydroxide ions in aqueous solution

• Bases react with acids to produce a salt and water only

• Alkalis react with reactive metals

Which of the following is an example of a base?

• Hydrochloric acid

• Ethanoic acid

• Sulphuric acid

• Sodium hydroxide

What gas is released when alkalis heated with ammonium salts?

• Oxygen

• Carbon dioxide

• Ammonia

• Hydrogen

What is the general equation when calcium hydroxide reacts with ammonium chloride?

• Ca(OH)₂(aq) + 2NH₄Cl(s) + H₂O(l)

• CaCl₂(aq) + 2NH₄Cl(s) + H₂O(l)

• Ca(OH)₂(aq) + 2NH₄Cl(s)

• CaCl₂(aq) + 2H₂O(l) +2NH₃(g)

What is the use of sulphuric acid?

• Detergents, car batteries

• Window cleaning solutions

• Toothpaste to neutralize acid on teeth

• Cleaning metals

What is the use of calcium oxide?

• To preserve food

• To neutralize acid on teeth

• In making soaps and detergents

• To make iron, concrete, cement