When a whitewaxy solid (A) is heatedin an inertatmosphere , it is convertintoitsallotropicform (B).(A) reactswithvery dilutesolutionits allotropic with very dilutesolutionof KOHto form ahighly poisonous gas (C)havingsmellof rottenfish. (C) reactswith excessof chlorineto form(D) whichon hydrolysisproducesthe compound (E). Identify (A), (B),(C), (D) and(E) and give the reactioninvolved .

When a whitewaxy solid (A) is heatedin an inertatmosphere , it is conv

1.	When a whitewaxy solid (A) is heatedin an inertatmosphere , it is convertintoitsallotropicform (B).(A) reactswithvery dilutesolutionits allotropic with very dilutesolutionof KOHto form ahighly poisonous gas (C)havingsmellof rottenfish. (C) reactswith excessof chlorineto form(D) whichon hydrolysisproducesthe compound (E). Identify (A), (B),(C), (D) and(E) and give the reactioninvolved .
Answer» Solution :A : whitephosphour B : redphoshpours C : `PH_(3)`, D : `PCl_(5)`, E : `H_(3)PO_(4)`