The following reaction represents a step in the separation of which analytical group of cations? Cu²⁺(aq)+ S^2-(aq)→ CuS(s) A)Analytical Group I B)Analytical Group III C)Analytical Group V D)Analytical Group IV E)Analytical Group II

Question

Quizplus · Accepted Answer

This reaction involves the precipitation of copper sulfide (CuS) from a solution containing sulfide ions (S2-) and cations from Analytical Group II, which includes Cu2+, Pb2+, Cd2+, Hg2 2+. Therefore, the best choice is E, Analytical Group II.

The Following Reaction Represents a Step in the Separation of Which