Which of the following statements about halides of group 15 elements is incorrect?

Options

A. phosphorus and the heavier elements As , Sb and Bi react directly with halogens
B. Phosphorus can from all the pentahalides as well all the trihalides
C. As , Sb and Bi primarily give trihalides
D. `SbF_(5) , SbCl_(5)`and ` AsF_(5)` can also be formed

Answer

B

Explanation

P,Sb , As and Bi directly react with halogens. Sb,As and Bi mainly form trihalides and pentahalides `SbF_(5),SbCl_(5)` and `AsF_(5)` which are also known. So the incorrect choise is B.P. can form all trihalides but can't form all pentahalides since `PI_(5)` is not known.