The blue precipitate formed when aqueous copper sulphate reacts with aqueous ammonium hydroxide is.

copper hydroxide

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ammonium sulphate

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cupric oxide

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Solution

The correct option is A copper hydroxide
When ammonium hydroxide reacts with copper sulphate solution, copper hydroxide is formed as a precipitate.
A precipitate is an insoluble solid substance that settles at the bottom of the solution during a reaction. $C u S O_{4} (a q) + N H_{4} O H (a q) \to Cu (OH)_{2} (aq) + ({NH}_{4})_{2} {SO}_{4} (aq)$

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