Important allotrpic forms of phosphorus are white phosphrous, red phosphorus and black phosphorus. Among these which allotropic form is more reactive? Why?

Important allotrpic forms of phosphorus are white phosphrous, red phos

1.	Important allotrpic forms of phosphorus are white phosphrous, red phosphorus and black phosphorus. Among these which allotropic form is more reactive? Why?
Answer» Solution :White phosphours is the most reactive because of the FOLLOWING two REASONS : (i) White phosphorus consists of `P_(4)` molecules which are held together by weak van der Waals forces of attraction. (ii) The `P_(4)` molecules have considerable angle STRAIN because in them PPP angle is just `60^(@)`. Therefore, due to considerable angle strain and WEAKER forces of attraction, white phosphorus is most reactive.