question_answer

Which one of the following is planar?                                                                                                      

A)                 \[Xe{{F}_{4}}\]

B)                 \[Xe{{O}_{4}}\]

C)                 \[Xe{{O}_{3}}F\]                      \[Xe{{O}_{3}}F\]  

D)                 \[Xe{{O}_{3}}{{F}_{2}}\]

Correct Answer: A

Solution :

                   Structure of \[Xe{{F}_{4}}\] as follows:                                 In involves \[s{{p}^{3}}{{d}^{2}}\] hybridisation in Xe atom. The molecule has square planar structure. Xe and four F atoms are coplanar. The lone pairs present on axial positions, minimise electrons pair repulsion.