Which of the following is incorrect about phosphorus trichloride?

Options

A. It is widely used in organic chemistry to convert carboxylic acids to alkyl chlorides.
B. It is oxidized by `O_(2)` or `P_(4)O_(10)` to give phosphorus oxochloride
C. it is an unsaturated compound
D. it acts as a reducing agent

Answer

1

Explanation

It convert carboxylic acids to acid chlorides
`PCl_(3)+3RCO_(2)Hrarr3RCOCl+H_(3)PO_(3)`
Catalytic oxidation of phosphorus trichloride gives phosphorus oxychloride:
`2PCl_(3)(l)+O_(2)(g)rarr2POCl_(3)(l)`
`6PCl_(3)+P_(4)O_(10)+6Cl_(2)rarr10POCl_(3)`
It directly combines wiht `Cl_(2),O_(2)` and `S` incdicating that it is an unsatureed compound:
`PCl_(3)+Cl_(2)rarrPCl_(5)`
`2PCl_(3)+O_(2)rarr2POCl_(3)`
`PCl_(3)+SrarrPSCl_(3)`
It acts as a reducing agent
`PCl_(3)+SO_(2)Cl_(2)rarrPCl_(5)+SO_(2)`
`PCl_(3)+SO_(3)rarrPOCl_(3)+SO_(2)`
`3PCl_(3)+SOCl_(2)rarrPOCl_(3)+PSCl_(3)+PCl_(5)`