Question

Hydrolysis of $PC{l_3}$ produces:
A. ${H_3}P{O_3} + HCl$
B. ${H_3}P{O_3} + {H_2}O$
C. ${H_3}P{O_4} + HCl$
D. $P{H_3} + HClO$

Answer 1

Hydrolysis is a chemical reaction in which a molecule or a compound reacts with a molecule of water leading to a formation of new substances by breaking the bond of the reactant. This term is generally used for substitution reactions as well as elimination reactions and solvation reactions in which water is acting as a nucleophile (the nucleophile attacks at the carbon centre bearing a positive charge).

Complete answer:
$PC{l_3}$ and phosphorous trichloride is a chemical compounds which readily reacts with water to produce $HCl$ gas, and with $HCl$ gas the by-product formed is ${H_3}P{O_3}$, the reaction is as follows,
$PC{l_3} + 3{H_2}O \to {H_3}P{O_3} + 3HCl$

Therefore, the correct answer is Option A, ${H_3}P{O_3} + HCl$.

Additional Information:
Additional Information: PCl3 is a volatile and a toxic compound, when we learn about its shape it has a trigonal pyramidal shape, because of the one lone pair of phosphorus and the three chlorine atoms. It has a wide application when it comes to the manufacturing of various phosphorous compounds. The phosphorous trichloride is prepared industrially by the reaction of chlorine with white phosphorous, phosphorous in $PC{l_3}$ is in $+ 3$ oxidation state and the chlorine are in $- 1$ oxidation state. $PC{l_3}$ also goes under oxidation reactions and produces various compounds such as: $PC{l_5}$ also called as phosphorus pentachloride or thiophosphoryl chloride with the chemical formula $PSC{l_3}$ or phosphorous oxychloride with the chemical formula $POC{l_3}$.

Note:
In the production of $PC{l_3}$, instead of white phosphorus, red phosphorus can also be used in industrial terms as it is less toxic than the white phosphorus and also less expensive.