Distinguish between Ammonium hydroxide and Sodium hydroxide
Analytical Chemistry (10)How will you distinguish between Ammonium hydroxide and Sodium hydroxide using copper sulphate solution?
Answer
On adding copper sulphate solution to both, the one that forms a blue precipitate that is insoluble in excess of the reagent is NaOH.
The other solution forms a pale blue precipitate that dissolves in excess reagent to form an ink blue solution and this is NH4OH.
- Exam Year: 2017