The dand fblock elements - Result Question 22
####22. Which one of the following ions is the most stable in aqueous solution?
[2007]
(a) $V^{3+}$
(b) $Ti^{3+}$
(c) $Mn^{3+}$
(d) $Cr^{3+}$
(At.No. $Ti=22, V=23, Cr=24, Mn=25$ )
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Solution:
- (d) $Cr^{3+}$ will be most stable in aqueous solution according to crystal field theory. It has $t _{2 g}^{3}$ configuration, which is most stable among the given options.
