Pick out the incorrect statement.

Question

Pick out the incorrect statement. (A) Except nitrogen, all the elements of group 15 exist in allotropic modification (B) Only at high temperatures, greater than 1,070 K, phosphorus vapours dissociates into P2 molecules (C) Red phosphorus is obtained by heating white phosphorus at 540-570 K in the absence of air for several hours (D) White phosphorus is more reactive, but less soluble in CS2 (and other organic solvents) than red phosphorus

Tardigrade Admin · Accepted Answer

White phosphorus is readily soluble in CS2 and other organic solvent, but red phosphorus is insoluble in these.

Q. Pick out the incorrect statement.

Except nitrogen, all the elements of group 15 exist in allotropic modification

Only at high temperatures, greater than 1,070 K, phosphorus vapours dissociates into $P_{2}$ molecules

Red phosphorus is obtained by heating white phosphorus at 540-570 K in the absence of air for several hours

White phosphorus is more reactive, but less soluble in $C S_{2}$ (and other organic solvents) than red phosphorus

White phosphorus is readily soluble in $C S_{2}$ and other organic solvent, but red phosphorus is insoluble in these.

Q. Pick out the incorrect statement.

Except nitrogen, all the elements of group 15 exist in allotropic modification

Only at high temperatures, greater than 1,070 K, phosphorus vapours dissociates into P2​ molecules

Red phosphorus is obtained by heating white phosphorus at 540-570 K in the absence of air for several hours

White phosphorus is more reactive, but less soluble in CS2​ (and other organic solvents) than red phosphorus

White phosphorus is readily soluble in CS2​ and other organic solvent, but red phosphorus is insoluble in these.

Only at high temperatures, greater than 1,070 K, phosphorus vapours dissociates into $P_{2}$ molecules

White phosphorus is more reactive, but less soluble in $C S_{2}$ (and other organic solvents) than red phosphorus

White phosphorus is readily soluble in $C S_{2}$ and other organic solvent, but red phosphorus is insoluble in these.