Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Inorganic: P Block Elements

Question:

Which of the following statement regarding PCl3 is false?

Options:

PCl3 forms metal chlorides on heating with finely divided metals

PCl3 does not react with organic compounds

PCl3 is a colourless pungent smelling liquid

PCl3 boils at 347 K

Correct Answer:

PCl3 does not react with organic compounds

Explanation:

Phosphorus trichloride is widely used as an important reagent in organic chemistry for replacing hydroxyl groups by chlorine atoms in organic reactions. For example, ethanol reacts with phosphorus trichloride to form chloroethane and phosphorous acid.

3CH3CH2OH + PCl3 → 3CH3CH2Cl + H3PO3.