MCQ
Increasing order of stability of the $+2$ oxidation state of the ions ?
- A$Ca^{2+} < Ba^{2+} < Sr^{2+}$
- B$Pb^{2+} < Ge^{2+} < Sn^{2+}$
- ✓$Ge^{2+} < Sn^{2+} < Pb^{2+}$
- D$Cu^{2+} < Au^{2+} < Ag^{2+}$
✓
Answer
Correct option: C.
$Ge^{2+} < Sn^{2+} < Pb^{2+}$
c
According to inert pair effect, the $+2$ oxidation state is more stable down the group.
According to inert pair effect, the $+2$ oxidation state is more stable down the group.
The relative stability of the $+2$ oxidation state increases on moving from top to bottom.
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