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Chemistry
Chemistry
Problem
Oxide of metal cation which is not amphoteric? a.
Al
3
+
\text{Al}^{3+}
Al
3
+
b.
Cr
3
+
\text{Cr}^{3+}
Cr
3
+
c.
Fe
3
+
\text{Fe}^{3+}
Fe
3
+
d.
Zn
2
+
\text{Zn}^{2+}
Zn
2
+
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