1.

Sulphur troxide can be obtained by which of the following reaction ?

Answer»

`CaSO_(4)+C OVERSET(Delta)to`
`Fe_(2)(SO_(4))_(3) overset(Delta)to`
`S+H_(2)SO_(4) overset(Delta)to`
`H_(2)SO_(4)+PCl_(5) overset(Delta)to`

Solution :Except `SO_(2)` other gases are collected over water. Because `SO_(2)` soluble in `H_(2)O`.


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