The salts formed by the neutralisation process between acid and base.
These are of three types:
(i) Normal salt :
(i) The salt formed by the loss of all possible protons (replaceable H+ ions)
Ex: NaCl, NaNO3, K2SO4 , Ca3 (PO4)2, Na3 BO3, Na2 HPO3, NaH2 PO2 etc.
(ii) Acid salts :
(i) Salts formed by incomplete neutralisation of polybasic acids. Such salts contain one or more replaceable H atom.
Ex: NaHCO3 , NaHSO4 , NaH2 PO4, Na2 HPO4 etc.
(ii) Above salts when neutralized by base form normal salts.
(iii) Basic salts :
(i) Salts formed by in complete neutralisation of poly acidic bases are called basic salts. These salt contain one or more hydroxyl groups.
Ex: Zn(OH)Cl, Mg(OH)Cl, Fe(OH)2 Cl, Bi(OH)2 Cl etc.
(ii) Above salts when neutralised by acids form normal salts.