(a) State one air pollution that causes:
(i) blood poisoning
(ii) acid poisoning
(iii) blackening of the walls of buildings
(b) Mention one major chemical industry in each case which requires the following as raw materials:
(i) petrochemicals;
(ii) cellulose.
Explanation
(i) Carbon(II) oxide prevents the oxygenation of the blood.
(ii) Sulphur(IV) oxide resolved in rain water ged in rain water in the atmosphere to give acid rain.
(iii) Hydrogen sulphide reacts with the lead content of the paint to give black stains of lead(II) sulphide (PbS\(_{(s)}\)).
(b)(i) Petrochemical industry
(ii) Brewery or Brewing industry.