Write the Chemical Formula of following compounds with Criss - Cross method.
(a)Potassium dichromate
(b) Aluminium Phosphate
(c) Sodium Plumbite
(d) Ammonium sulphate
(e) Barium carbonate
(1) Nitric acid
(g)Sulphuric acid
(h) Calcium nitride
(i) Sodium nitrate
(i) Ammonium chloride