Formulae of the given compounds:
(a) Mercury (II) chloride : HgCl2
(b) Nickel (II) sulphate : NiSO4
(c) Tin (IV) oxide : SnO2
(d) Thallium (I) sulphate : Tl2SO4
(e) Iron (III) sulphate : Fe2(SO4)3
(f) Chromium (III) oxide : Cr2O3
The products formed in the following reaction, A and B, are:
