Addition of aqueous ammonia to a solution of Zn + gives a white precipitate which
CHEMISTRY
JAMB 1991
Addition of aqueous ammonia to a solution of Zn+ gives a white precipitate which dissolves in an excess of ammonia because?
- A. zinc is amphoteric
- B. zinc hydroxide is readily soluble
- C. zinc forms a complex which is readily soluble in excess ammonia
- D. ammonia solution is a strong base
Correct Answer: C. zinc forms a complex which is readily soluble in excess ammonia
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