Acids and bases

1

What does this hazard symbol mean?

Orange background with black silhouette of two test tubes dripping liquid onto two objects. Where the objects have come into contact with the liquids, they have corroded

2

Which of these acids is most likely to be dangerous?

3

Which statement about bases is true?

4

Which statement about alkalis is true?

5

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

6

Which of these is not a base?

7

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

8

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

9

Which is a source of naturally occurring acids?

10

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