How many of the following eight cations belong to qualitative-analysis groups IIA, III, IV, and V only:
Sn^{2+}, Hg_, Pb^{2+}, Zn^{2+}, Cu^{2+}, Cr^{3+}, As^{3+}, Ba^{2+}

Question

How many of the following eight cations belong to qualitative-analysis groups IIA, III, IV, and V only: Sn ^ 2+ , ; Hg _2^ 2+ , ; Pb ^ 2+ , ; Zn ^ 2+ , ; Cu ^ 2+ , ; Cr ^ 3+ , ; As ^ 3+ , ; Ba ^ 2+

Accepted Answer

4

JEE Main Chemistry question

Solution

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