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Question

Chemistry Question on Group 18 Elements

Which structure for XeO3andXeF4XeO_{3} \, and XeF_{4} are consistent with the VSEPR model?

A

XeO3,XeO_{3}, trigonal pyramidal; XeF4,XeF_{4,} square planar

B

XeO3,XeO_{3,} trigonal planar; XeF4XeF_{4} square planar

C

XeO3,XeO_{3,} trigonal pyramidal; XeF4,XeF_{4,} tetrahedral

D

XeO3,XeO_{3,} tirgonal planar; XeF4,XeF_{4,} tetrahedral

Answer

XeO3,XeO_{3}, trigonal pyramidal; XeF4,XeF_{4,} square planar

Explanation

Solution

XeO3XeO_{3} ; 3σ\sigma bond and 1 lone pair; sp3sp^{3} hybridisation
Shape trigonal pyramidal
XeF4;XeF_{4} ; 4 σ\sigma bonds, 2 lone pairs; sp3d2sp^{3}d^{2} hybridisation
Shape square planar