An aqueous solution of a metal salt, M, gives a white precipitate with NaOH which dissolves in excess NaOH. With aqueous ammonia, the solution of M also gives a white precipitate which dissolves in excess ammonia. Therefore cartion in M is
A.
Zn ++
B.
Ca++
C.
Ai+++
D.
Pb++
E.
Cu++
Correct Answer: Option A
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