Presence of which of the forcoming compounds makes water hard ? `Na_(2)SO_(
Channel: Doubtnut
Date: 2021-11-02

Presence of which of the forcoming compounds makes water hard ?`Na_(2)SO_(4),Ca(HCO_(3))_(2),MgCl_(2),Na_(2)CO_(3),CaSO_(4),KCl,NaHCO_(3),MgSO_(4),CaCl_(2)`