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Chemistry
Chemistry
Problem
It is noted that
Pb
2
+
\text{Pb}^{2+}
Pb
2
+
is more stable than
Pb
4
+
\text{Pb}^{4+}
Pb
4
+
but
Sn
2
+
\text{Sn}^{2+}
Sn
2
+
is less stable than
Sn
4
+
\text{Sn}^{4+}
Sn
4
+
in the following reactions,
PbO
2
+
Pb
→
2
PbO
;
Δ
r
G
∘
(
1
)
.
\text{PbO}_2 + \text{Pb} \rightarrow 2\text{PbO}; \Delta_r G^\circ(1).
PbO
2
+
Pb
→
2
PbO
;
Δ
r
G
∘
(
1
)
.
SnO
2
+
Sn
→
2
SnO
;
Δ
r
G
∘
(
2
)
\text{SnO}_2 + \text{Sn} \rightarrow 2\text{SnO}; \Delta_r G^\circ(2)
SnO
2
+
Sn
→
2
SnO
;
Δ
r
G
∘
(
2
)
Correct statement:
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