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Q.
Which of the following statements about halides of group 15 elements is incorrect ?
The p-Block Elements - Part2
Solution:
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 choice is B. P can form all trihalides but can-t form trihalides but can-t form all pentahalides since PI5 is not known