alleryBasic copper sulphate dissolves in excess NH4OH to give a blue solution of:
ACopper(II) ferrocyanide
BHexaaquacopper(II)
CTetraamminecopper(II)
DCupric metaborate
Answer & Solution
Correct answer: C. Tetraamminecopper(II)
Excess ammonia forms the deep blue tetraamminecopper(II) complex.
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