Year 10 - Acids and Bases Test answers

Which of the following is a property of bases?

• Has a sour taste

• Reacts with most metals to form hydrogen gas

• Feels sticky

• Feels slippery

An acid is a substance that has

• A low H+ concentration and high OH- concentration

• A high H+ concentration and low OH- concentration

• The same concentration of H+ and OH-

• None of the above

Determine which of the following statements is False

• A dilute alkali will have a small amount of alkali particles in a given volume of solvent

• A concentrated alkali will have a large amount of alkali particles in a given volume of solvent

• A concentrated alkali will have a small amount of alkali particles in a given volume of solvent

• None of the above

Which of the following is not an example of a mineral acid

• Citric Acid

• Nitric Acid

• Hydrochloric Acid

• Sulfuric Acid

What is the definition of an ‘acid’?

Answer explanation

A substance that releases hydrogen ions when it is dissolved in water.

What is the definition of an ‘alkali’?

Answer explanation

A substance that releases hydroxide ions when it is dissolved in water.

Name the ion produced by a base when it dissolves in water?

Answer explanation

Hydroxide ions or OH-

Name the acid:

HCl