-When aqueous ammonia is added to the water sample dropwise, a white precipitate which dissolves in excess ammonia is formed showing presence of zinc ions
- A few drops of acidified barium nitrate when added forms white precipitate showing presence of sulpate ions.
OR
To the water sample, add 3 drops of ammonia solution until in excess.Formation of a white precipitate that dissolves in excess ammonia solution to form a colourless solution confirms presence of zinc ions.
johnmulu answered the question on February 15, 2017 at 05:36
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