Science

Chemicals in our lives - risks and benefits

Manufacture and use of chemicals - Test

1.

When an alkali neautralises an acid, what is made?

2.

What was the LeBlanc process?

3.

How was the polluting gas, hydrogen chloride, usefully disposed of?

4.

What is added to water to make is safer to drink?

5.

Why is chlorination of water a risk?

6.

What is brine made up of?

7.

What useful chemicals are obtained during the electrolysis of brine?

8.

Suggest a use of sodium hydroxide: