Acids and Alkalis - Yr 8

What does this hazard symbol mean?

• Corrosive

• Irritant

• Harmful

Which of these acids is most likely to be dangerous?

• Citric acid

• Carbonic acid

• Hydrochloric acid

Which statement about bases is true?

• They are all alkalis

• They can neutralise acids

• They are all soluble

Which statement about alkalis is true?

• They are all bases

• They cannot neutralise acids

• They are all insoluble

What name is given to a hazardous substance that can burn through skin and other substances?

• Toxic

• Irritant

• Corrosive

Which of these is not a base?

• Copper oxide

• Sodium hydroxide

• Sulfur dioxide

What sort of substance is found in many medicines to cure indigestion?

• A salt

• An acid

• A base

What name is given to a reaction in which an acid and base react with each other?

• Neutralisation

• Combustion

• Displacement

Which is a source of naturally occurring acids?

• Lemon

• Potato

• Grass

What sort of chemical is found in many household cleaning products, like bleach and oven cleaner?

• Acids

• Alkalis

• Salts