how hydrolysis of Na2CO3 occur
Hydrolysis of Na2CO3: This salt is basic in nature because In this NaOH is strong base and H2CO3 is a weak acid, so When this get hydrolysed, it will happen in two steps:
Na2CO3 + H2O ----------> NaOH + NaHCO3
NaHCO3 + H2O ----------> NaOH + H2CO3