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Analytical Chemistry — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryAnalytical Chemistry1 Mark
Question
When ammonium hydroxide is added to solution $B$, a pale blue precipitate is formed. This pale blue precipitate dissolves in excess ammonium hydroxide to give an inky blue solution. Name the cation present in solution $B$. What is the probable colour of solution $B$?
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Answer

The cation present in solution $B$ is $Cu^{2+}$​​​​​​​. The probable colour of solution $B$ is blue.

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