1.

In the preparation of H_(2)SO_(4)

Answer»

`SO_(2)` is DISSOLVED in `H_(2)SO_(4)`
`SO_(2)` is dissolved in WATER
`SO_(3)` is dissolved in conc. `H_(2)SO_(4)`
`SO_(3)` is dissolved in DILUTE `H_(2)SO_(4)`

Answer :C


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