1.

Excess of PCl_(5) reacts with conc , H_(2)SO_(4) giving

Answer»

sulphuryl CHLORIDE
sulphurous ACID
chlorosulphonic acid
thionyl chloride

Solution :Excessof `PCl_(5)` REACTS with conc. `H_(2)SO_(4)`to give sulphurly chloride.
`underset("Sulphurice acid")(SO_(2)(OH)_(2)+2PCl_(5))tounderset("Sulphuryl chloride")(SO_(2)Cl_(2)+2POCl_(3)+2HCl`


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