Question

5) An element X forms a cation X2+. Give the formula of the compound of this cation with the following anions: a) Dichromate b) Oxalate c) Carbide d) Phosphite e) Chlorite f) Chromate g) Manganate h) Acetate

Answer 1

C2H3O2. - acetate. CrO4. 2- chromate. Cr2O7. 2- dichromate. NH4. + ammonium (the only common non- metal cation!)