In which one of the following pairs the two species have identical shape, but differ in hybridisation?
In which one of the following pairs the two species have identical shape, but differ in hybridisation?
$\mathrm{l}_3^{-}, \mathrm{BeCl}_2$
$NH_3, BF_3$
$XeF_2, I_3^{-}$
$NH_4^{-}, SF_4$
Solution
Central $\mathrm{I}$ in $\mathrm{I}_3^{-}$undergoes $s p^3 d$ hybridisation giving a linear shape with three lone pairs at equatorial positions. Beryllium chloride has linear structure with $s p$ hybridisation of Be atom.
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