Give two examples for each of the following substances:

(a) food preservatives

(b) fuels

(c) fungicides

(d) medicines

(e) building materials

(f) chemical war weapons

(a) Food preservatives:

1. Sodium metabisulphate
2. Ascorbic acid

(b) Fuels:

1. Petrol
2. Diesel

(c) Fungicides:

1. Bordeaux mixture
2. Sulphur

(d) Medicines:

1. Aspirin
2. Paracetamol

(e) Building materials:

1. Steel
2. Cement

(f) Chemical war weapons:

1. Trinitrotoluene
2. Gunpowder