Reaction of thionyl chloride with white phosphorus forms a compound [A], which on hydrolysis gives [B], a dibasic acid. [ A ] and [ B ] are respectively

Question

Reaction of thionyl chloride with white phosphorus forms a compound [A], which on hydrolysis gives [B], a dibasic acid. [ A ] and [ B ] are respectively (A) P 4 O 6 and H 3 PO 3 (B) PCl 5 and H 3 PO 4 (C) PCl 3 and H 3 PO 3 (D) POCl 3 and H 3 PO 4

Tardigrade Admin · Accepted Answer

P 4+8 SOCl 2 arrow underset[A]4 PCl 3+4 SO 2+2 S 2 Cl 2 PCl 3+3 H 2 O arrow underset[B]H 3 PO 3+3 HCl

Q. Reaction of thionyl chloride with white phosphorus forms a compound [A], which on hydrolysis gives [B], a dibasic acid. $[A]$ and $[B]$ are respectively

$P_{4} O_{6}$ and $H_{3} P O_{3}$

$PC l_{5}$ and $H_{3} P O_{4}$

$PC l_{3}$ and $H_{3} P O_{3}$

$POC l_{3}$ and $H_{3} P O_{4}$

$P_{4} + 8 SOC l_{2} \to [A] 4 PC l_{3} + 4 S O_{2} + 2 S_{2} C l_{2}$
$PC l_{3} + 3 H_{2} O \to [B] H_{3} P O_{3} + 3 H Cl$

Q. Reaction of thionyl chloride with white phosphorus forms a compound [A], which on hydrolysis gives [B], a dibasic acid. [A] and [B] are respectively

P4​O6​ and H3​PO3​

PCl5​ and H3​PO4​

PCl3​ and H3​PO3​

POCl3​ and H3​PO4​