MCQ
Most stable cation in aqueous medium is
- A$Cr^{2+}$
- B$V^{3+}$
- ✓$Cr^{3+}$
- D$Mn^{2+}$
✓
Answer
Correct option: C.
$Cr^{3+}$
c
$Cr ^{3+}$ has a $3 d^3 4 s ^0$ configuration with an exactly half-filled $t_{2 g}^3$ is thus the most stable ion in the aqueous medium.
$Cr ^{3+}$ has a $3 d^3 4 s ^0$ configuration with an exactly half-filled $t_{2 g}^3$ is thus the most stable ion in the aqueous medium.
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