MCQ
Taking stability as the factor, which one of the following represents correct relationship?
- ✓$TlI > TlI _3$
- B$TlCl _3 > TlCl$
- C$\operatorname{InI}_3 > \ln I$
- D$AlCl > AlCl _3$
✓
Answer
Correct option: A.
$TlI > TlI _3$
a
$T l^{+}$ and $I ^{-}$ > $T l^{+3}$ and $3 I ^{-}$
$T l^{+}$ and $I ^{-}$ > $T l^{+3}$ and $3 I ^{-}$
due to inert pair effect $Tl^{+}$is more stable than $Tl^{+3}$.
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