J & K CET Engineering
J and K - CET Engineering Solved Paper-2005
question_answer
Which of the following is planar?
A)\[Xe{{F}_{2}}\]
B)\[Xe{{O}_{3}}F\]
C) \[Xe{{O}_{2}}{{F}_{2}}\]
D)\[Xe{{F}_{4}}\]
Correct Answer:
A
Solution :
\[\text{Xe}{{\text{F}}_{\text{2}}}\]molecule contains two bond pairs and three lone pairs in the outer-shell of central atom and thus its hybridisation is\[s{{p}^{3}}{{d}^{2}}\] but to minimize the repulsive forces the three lone pairs occupy the equatorial position and the molecule becomes linear shape.