Sodium hydroxide solution is added first in a small quantity, then in excess to the aqueous salt solutions of … ) Iron (III)…
Answers:
| Aqueous salt solution | Colour of precipitate when NaOH is added in a small quantity. | Nature of precipitate (soluble or insoluble) when NaOH is added in excess. |
| Copper (II) sulphate | Blue | Insoluble |
| Zinc nitrate | White | Soluble |
| Lead nitrate | White | Soluble |
| Calcium chloride | White | Insoluble |
| Iron (El) sulphate | Reddish Brown | Insoluble |