Question 1

Which of these acids is the most dangerous?

Accepted Answer

Hydrochloric acid

Answer

Citric acid

Answer

Carbonic acid

Answer

Sulphuric acid

Question 2

Which of the following statements about bases is correct?

Accepted Answer

They neutralise acids

Answer

They all dissolve in water

Answer

They neutralise alkalis

Answer

All bases are alkalis

Question 3

What does the following hazard symbol mean?

Accepted Answer

Irritant

Answer

Corrosive

Answer

Flammable

Answer

Explosive

Question 4

What does the following hazard symbol mean?

Accepted Answer

Corrosive

Answer

Flammable

Answer

Explosive

Answer

Irritant

Question 5

Which of the following statements about alkalis is correct?

Accepted Answer

They are all bases

Answer

They neutralise bases

Answer

They don't dissolve in water

Answer

They are all acids

Question 6

Which of the following items is a natural source of acid?

Accepted Answer

Lemon

Answer

Corn

Answer

Potato

Answer

Peanuts

Question 7

What's the name of the reaction in which a base and an acid react with each other?

Accepted Answer

Neutralisation

Answer

Combustion

Answer

Displacement

Answer

Oxidation

Question 8

What is the pH of a neutral solution?

Accepted Answer

7

Answer

1

Answer

5

Answer

14

Question 9

What happens to litmus paper in alkaline solutions?

Accepted Answer

Blue litmus stays blue

Answer

Red litmus stays red

Answer

Green litmus turns blue

Answer

Blue litmus turns red

Question 10

You measure the pH of a solution as 8. How would you describe this solution?

Accepted Answer

Weakly alkaline

Answer

Neutral

Answer

Strongly alkaline

Answer

Weakly acid

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