From the following list of salts : Na₂SO₄.10H₂O, NaCl, KClO₃, NaNO₃, Ca(OH)₂, NH₄Cl, KCI, CaSO₄.

State the salts whose solubility (a) increases, (b) decreases, (c) is fairly independent or slightly increases – with rise in temperature of water.

(a) KClO₃, NH₄Cl — solubility increases with increase in temperature.

(b) CaSO₄, Ca(OH)₂ above 70° C — solubility decreases with rise in temperature

(c) NaCl, KCl, Ca(OH)₂ below 70° C — slightly increases with rise in temperature.