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p-Block Elements - I
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Group $13$ elements show $+1$ and $+3$ oxidation states. Relative stability of $+3$ oxidation state may be given as
A
$Tl^{3+} > In^{3+} > Ga^{3+} > Al^{3+} > B^{3+}$
B
$B^{3+} > Al^{3+} > Ga^{3+} > In^{3+} > Tl^{3+}$
C
$Al^{3+} > Ga^{3+} > Tl^{3+} > In^{3+} > B^{3+}$
D
$Al^{3+} > B^{3+} > Ga^{3+} > Tl^{3+} > In^{3+}$
Solution
On moving down the group stability of lower oxidation state increases and higher oxidation state decreases
Standard 11
Chemistry
