NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice
Pick out the incorrect statement for X e F 4
Options
- AX e F 4 disproportionates violently with water
- BIt is used as fluorinating agent
- CIt has octahedral shape
- DIt oxidizes I - or I 2
Correct answer
C. It has octahedral shape
Step-by-step solution
According to VSEPR theory, six electron pairs form an octahedron with two positions occupied by lone pairs. This results in square planar shape of X e F 4 . A. 3 X e F 4 ( + 4 ) + 6 H 2 O → 2 X e ( 0 ) + X e O 3 ( + 6 ) + 12 H F + 3 2 O 2 X e F 4 is reduced to Xe and also oxidized to X e O 3 . B. (i) X e F 4 + 2 S F 4 → X e + 2 S F 6 (ii) 3 X e F 4 + 2 P t → 3 X e + 2 P t F 6 (iii) X e F 4 + C 6 H 6 → X e + C 6 H 5 F + H F D. X e F 4 + 4 K I → 4 K F + X e + 2 I 2