Which is the most reactive species of phosphorus?

Question

Which is the most reactive species of phosphorus? (A) White (B) Red (C) Scarlet (D) Violet

Tardigrade Admin · Accepted Answer

White Phosphorus or Yellow phosphorus Red phosphorus Black phosphorts 1 Prepared by heating phospinate rock with silica coke at 11770 K in a electric furnace White phosphorus xrightarrow525 K Red phosphorus White P xrightarrow473 K Black phosphorus high pressure (inert atm) 2 Soft waxy solid can be cut with a knife Hard red solid sp. gravity 2.1 Exist in three crystalline and one amorphous form 3 Poisnous non-poisnous non-poisnous 4 Insoluble in H 2 O soluble in CS 2 Insoluble both in H 2 O and CS 2 Insoluble in H 2 O and CS 2 5 On contact with air it undergoes slow combustion and glow in dark (chemilumines cence) It is less stable and more reactive form of phosphorus More stable and chemically less reactive as compared to white phosphorus due polymeric structure. It is most stable and least reactive form of phosphorus

	White Phosphorus or Yellow phosphorus	Red phosphorus	Black phosphorts
1	Prepared by heating phospinate rock with silica & coke at $11770 K$ in a electric furnace	White phosphorus $525 K$ Red phosphorus	White P $473 K$ Black phosphorus high pressure (inert atm)
2	Soft waxy solid can be cut with a knife	Hard red solid sp. gravity $2.1$	Exist in three crystalline and one amorphous form
3	Poisnous	non-poisnous	non-poisnous
4	Insoluble in $H_{2} O$ soluble in $C S_{2}$	Insoluble both in $H_{2} O$ and $C S_{2}$	Insoluble in $H_{2} O$ and $C S_{2}$
5	On contact with air it undergoes slow combustion and glow in dark (chemilumines cence) It is less stable and more reactive form of phosphorus	More stable and chemically less reactive as compared to white phosphorus due polymeric structure.	It is most stable and least reactive form of phosphorus

Q. Which is the most reactive species of phosphorus?

White

Red

Scarlet

Violet