Categories: Chemistry WAEC

What would be observed when aqueous ammonia is added in drops and then in excess to a solution of copper(II) ions?

A. blue precipitate is formed which is soluble in excess ammonia
B. brick red precipitate is produced which is insoluble in excess ammonia
C. which precipitate is formed which is excess in ammonia
D. green precipitate is formed which is insoluble in excess ammonia

Correct Answer:

Option A – blue precipitate is formed which is soluble in excess ammonia

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