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Chemistry
Chemistry
Problem
Which of the following pairs of cations can be separated by adding
N
H
4
C
l
NH_4Cl
N
H
4
C
l
and
N
H
4
O
H
NH_4OH
N
H
4
O
H
to the mixture? a.
F
e
3
+
Fe^{3+}
F
e
3
+
,
A
l
3
+
Al^{3+}
A
l
3
+
b.
C
r
3
+
Cr^{3+}
C
r
3
+
,
N
i
2
+
Ni^{2+}
N
i
2
+
c.
A
l
3
+
Al^{3+}
A
l
3
+
,
C
r
3
+
Cr^{3+}
C
r
3
+
d.
F
e
3
+
Fe^{3+}
F
e
3
+
,
C
r
3
+
Cr^{3+}
C
r
3
+
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