Chemistry
WAEC 2021
What would be observed when aqueous ammonia is added in drops and then in excess to a solution of copper(II) ions?
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A.
blue precipitate is formed which is soluble in excess ammonia
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B.
brick red precipitate is produced which is insoluble in excess ammonia
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C.
which precipitate is formed which is excess in ammonia
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D.
green precipitate is formed which is insoluble in excess ammonia
Correct Answer: Option A
Explanation
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