Question

Based on VSEPR model, match the xenon compounds given in List-I with the corresponding. geometries and the number of lone pairs on xenon given in List-II and choose the correct option.

	List-I		List-II
(P)	\(XeF_2\)	(1)	Trigonal bipyramidal and two lone pair of electrons
(Q)	\(XeF_4 \)	(2)	Tetrahedral and one lone pair of electrons
(R)	\(XeO_3\)	(3)	Octahedral and two lone pair of electrons
(S)	\(XeO_3F_2\)	(4)	Trigonal bipyramidal and no lone pair of electrons
		(5)	Trigonal bipyramidal and three lone pair of electrons

(A) P-5, Q-2, R-3, S-1 

(B) P-5, Q-3, R-2, S-4 

(C) P-4, Q-3, R-2, S-1 

(D) P-4, Q-2, R-5, S-3

Answer 1

Correct option is (B) P-5, Q-3, R-2, S-4 

\(XeF_2 \Rightarrow 2\) sigma bonds and 3 lone pairs on Xe, number of hybrid orbitals = 5, \(sp^3 d\) hybridisation , geometry will be trigonal bipyramidal. 

P–5 

\(XeF_4 \Rightarrow 4\) sigma bonds and 2 lone pairs on Xe, number of hybrid orbitals = 6, \(sp^3 d^2\) hybridisation , geometry will be octahedral. 

Q–3 

\(XeO_3 \Rightarrow 3\) sigma bonds and 1 lone pairs on Xe, number of hybrid orbitals = 4, \(sp^3\) hybridisation , geometry will be tetrahedral. 

R–2 

\(XeO_3F_2 \Rightarrow 5\) sigma bonds and 0 lone pairs on Xe, number of hybrid orbitals = 5, \(sp^3 d\) hybridisation , geometry will be trigonal bipyramidal. 

S–4