To an aqueous solution containing ions such as Al , Zn , Ca , Fe , Ni , Ba and Cu was added conc. HCl, followed by H S. The total number of cations precipitated during this reaction is/are: 3+ 2+ 2+ 3

Question

To an aqueous solution containing ions such as Al , Zn , Ca , Fe , Ni , Ba and Cu was added conc. HCl, followed by H S. The total number of cations precipitated during this reaction is/are: 3+ 2+ 2+ 3+ 2+ 2+ 2+ 2 + 2

(A) 1
(B) 3
(C) 4
(D) 2

Prashant Kotian · Accepted Answer

Correct answer: D) 2. Group II and Group I cations except Ag gives precipitate with dil. HCl + H S.

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