Q 3161223125.     (i) Write the equations for the reaction of zinc with each of the following: -
(a) Sodium hydroxide solution.
(b) Dilute sulphuric acid.
(c) Copper sulphate solution .
(ii) Write the balanced equations for the preparation of the following compounds (as the major
product) starting from iron and using only one other substance:
(a) iron (II) chloride
(b) iron (III) chloride
(c) iron (II) sulphate
(d) iron (II) sulphide.
(iii) Write balanced equation for - AI powder when warmed with hot and concentrated caustic soda
solution .
(iv) To protect iron from rusting it is coated with a thin layer of zinc. Name the process.
(v) Which particular property of cast iron makes it unsuitable for the construction of bridges.