List-I contains molecules or ions and List-II contains shapes or lone pairs
List-I List-II
l $X e F_{4}, C l F_{3}$ P Same shape
ll $N H_{3}, H_{3} O^{+}$ Q Different shape
lll $X e F_{2}, B e C l_{2}$ R Same number of lone pair of electrons on central atom
lV $S F_{4}, S i F_{4}$ S Different number of lone pair of electrons on central atom
T Isoelectronic species

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I – RS ; II – PT ; III – RS ; IV – PQ

I – QR ; II – PRT ; III – PS ; IV – QS

I – PQ ; II – QRT ; III – PS ; IV – PS

I – PRS ; II – PQT ; III – PR ; IV – RT

answer is C.

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	List-I		List-II
l	$X e F_{4}, C l F_{3}$	P	Same shape
ll	$N H_{3}, H_{3} O^{+}$	Q	Different shape
lll	$X e F_{2}, B e C l_{2}$	R	Same number of lone pair of electrons on central atom
lV	$S F_{4}, S i F_{4}$	S	Different number of lone pair of electrons on central atom
		T	Isoelectronic species