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Question

Chemistry Question on p -Block Elements

PCl3PCl_3 on hydrolysis gives fumes of

A

H3PO3+HClH_3PO_3 + HCl

B

H3PO4+HClH_3PO_4 + HCl

C

H3PO2H_3PO_2 and H3PO3H_3PO_3

D

H3PO2+HClH_3PO_2 + HCl

Answer

H3PO3+HClH_3PO_3 + HCl

Explanation

Solution

Phosphorus trichloride reacts violently with water forming phosphorous acid. PCl3+3HOHH3PO3+3HCl PCl_{3} + 3HOH \to H_{3}PO_{3} + 3HCl