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PCl(5) +SO(2) rarr A+B A overset(3H(2)...

`PCl_(5) +SO_(2) rarr A+B`
`A overset(3H_(2)O)rarrHCl`
`C overset("Red hot")rarrD +H_(2)O`
Compound 'A' is

A

`POCl_3`

B

`PCl_3`

C

`SOCl_2`

D

`SO_2Cl_2`

Text Solution

Verified by Experts

The correct Answer is:
A
`PCl_(5)+SO_(2)rarrunderset(A)(PCl_3)+underset(B)(SO_2Cl_2)underset(A)(" "PCl_3)+3H_2Orarrunderset(C)(H_3PO_3)+3HCl`
`underset(C)(2H_3PO_3)overset("Red hot")rarrunderset(P_4O_6)underset(darr"Dimerises")(P_2O_3)+3H_2O" "2PCl_(5)hArrPCl_4^(+)+PCl_6^(-)`
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