Which statements are NOT TRUE about XeO _ 2 ~F _ 2 ? A. It has a see-saw shape. B. Xe has 5 electron pairs in its valence shell in XeO _ 2 ~F _ 2 . C. The O - Xe - O bond angle is close to 180^ . D. The F - Xe - F bond angle is close to 180^ . E. Xe has 16 valence electrons in XeO _ 2 ~F _ 2 . Choose the correct answer from the options given below:
A. B, C and E Only
In XeO_2F_2: Xe has 8 valence electrons forming 4 bonding pairs (2 with O, 2 with F) and 2 lone pairs, giving a trigonal bipyramidal electron geometry with a see-saw molecular shape, making statement A TRUE. Statement B is NOT TRUE because the total electron pairs around Xe is 6 (4 bonding + 2 lone), not 5. For statement C, the O-Xe-O angle in a see-saw geometry is approximately 120°, not close to 180°, making it NOT TRUE. Statement D is TRUE as the F-Xe-F angle is approximately 180° when F atoms occupy axial positions. Statement E is NOT TRUE since Xe has only 8 valence electrons, not 16. The incorrect statements are B, C, and E.
Related: Chemistry — Chemical Bonding and Molecular Structure · All PYQ Banks