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When Ammonium Hydroxide is Added to a Solution B, a Pale Blue Precipitate is Formed. T

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Question

When ammonium hydroxide is added to a solution B, a pale blue precipitate is formed. The pale blue precipitate dissolves in excess of ammonium hydroxide to give an inky blue solution. What is the cation (positive ion) present in solution B? What is the probable colour of solution B?
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Solution

The cation is Cu2+ ion. Solution B is copper sulphate. It is bright blue in colour.
 
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Chemical Properties of Ammonia
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Q 4
Chapter 9: Study of Compounds: Ammonia - Exercise 5 [Page 223]

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Frank Chemistry Part 2 [English] Class 10 ICSE
Chapter 9 Study of Compounds: Ammonia
Exercise 5 | Q 4 | Page 223

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