Describe giving all practical details, how would you prepare :
(a) copper sulphate crystals from a mixture of charcoal and black copper oxide,
(b) zinc sulphate crystals from zinc dust (powdered zinc and zinc oxide),
(c) sodium hydrogen carbonate crystals.
(d) Calcium sulphate from calcium carbonate.
How will you distinguish lead carbonate and zinc carbonate in solution ?
(h) Name from the list of the substances given below, the substance which you would use to prepare the salts given below: Copper, Lead, Sodium, Zinc, Copper Oxide, Lead Carbonate, Sodium Carbonate Solution, dil. HCl, dil. HNO3, dil. H2SO4. Salts: (i) Zinc sulphate (ii) Copper sulphate (iii) Sodium sulphate (iv) Lead sulphate