question_answer

The structure of\[I{{F}_{5}}\]can be best described as

A)                                             

B)  

C)                             

D)  None of these

Correct Answer: D

Solution :

                 Number of hybrid orbitals     = number of\[bp\]+ number of\[Ip\] \[=5+1=6\] Thus, hybridisation is \[s{{p}^{3}}{{d}^{2}}\] but geometry, due to the presence of one lone pair, is square pyramidal, ie,