Assertion. Elementary phosphorus exists I three principal allotrpic forms, i.e., white (yellow), red (or violte) and black. Reason. Of the three forms, white phosphorus is the most important and most reactive.

Assertion. Elementary phosphorus exists I three principal allotrpic fo

1.	Assertion. Elementary phosphorus exists I three principal allotrpic forms, i.e., white (yellow), red (or violte) and black. Reason. Of the three forms, white phosphorus is the most important and most reactive.
Answer» If both ASSERTION and REASON are true, and is the CORRECT explanation of the assertion. If both assertion and reason are true, but reason is not the correct explanation of the assertion. If assertion is true, but reason is false. If both assertion and reason are false Solution :Correct explanation. Depending upon whether `P_(4)` MOLECULES exist as discrete molecules held together by weak van der waals forces or are covalently bonded with one ANOTHER to form polymeric structures, phosphorus exists in three allotropic forms.