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Chemistry
Chemistry
Problem
Which of the following reagents will not be useful in separating a mixture of
Zn
2
+
\text{Zn}^{2+}
Zn
2
+
and
Cu
2
+
\text{Cu}^{2+}
Cu
2
+
? a.
H
2
S
\text{H}_2\text{S}
H
2
S
in an acid medium b.
H
2
S
\text{H}_2\text{S}
H
2
S
in an alkaline medium c. Excess NaOH solution d.
NH
3
\text{NH}_3
NH
3
solution
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