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Question

Chemistry Question on p -Block Elements

PCl3PCl_3 reacts with water to form

A

PH3PH_3

B

H3PO3,HClH_3PO_3, HCl

C

POCl3POCl_3

D

H3PO4H_3PO_4

Answer

H3PO3,HClH_3PO_3, HCl

Explanation

Solution

PCl3PCl_3 is easily hydrolysed by water to give POCl3POCl_3
and finally it gives H3PO3H_3PO_3 and HC1.
PCl3+H2OPOCI3+2HCI\, \, \, \, \, \, \, PCl_3 + H_2O \, \longrightarrow\, POCI_3 + 2HCI
POCl3+3H2OH3PO3+3HCI\, \, \, POCl_3 + 3H_2O \, \longrightarrow\, H_3PO_3 + 3HCI