Match List I with List II List I (molecules/ions) List II (No. of lone pairs of e - on central atom) (A) IF…

1. A - II, B - III, C - IV, D - I
2. A - IV, B - III, C - II, D - I
3. A - II, B - I, C - IV, D - III
4. A - IV, B - I, C - II, D - III

Solution

From the following lewis structures of  ${\mathrm{IF}}_7, {\mathrm{ICl}}_4^{-}, {\mathrm{XeF}}_6 \& {\mathrm{XeF}}_2$:
, ,  and 
we can deduce the number of lone pairs as well as the hybridisation of the central atom:
$\begin{array}{cc}{\mathrm{IF}}_7:& \mathrm{zero} \mathrm{lone} \mathrm{pair} {\mathrm{sp}}^3{\mathrm{d}}^3\\ {\mathrm{ICl}}_4^{-}:& \mathrm{two} \mathrm{lone} \mathrm{pair} {\mathrm{sp}}^3{\mathrm{d}}^2\\ {\mathrm{XeF}}_6:& \mathrm{one} \mathrm{lone} \mathrm{pair} {\mathrm{sp}}^3{\mathrm{d}}^2\\ {\mathrm{XeF}}_2:& \mathrm{three} \mathrm{lone} \mathrm{pair} {\mathrm{sp}}^3\mathrm{d}\end{array}$

Asked in: JEE Main 2023 (30 Jan Shift 1)

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