In the preparation of sulphuric acid,` V_(2)O_(5)` is used in the reaction, which is

Options

A. `SO_(2)toSO_(2)`
B. `2SO_(2)" + "O_(2)to2SO_(3)`
C. `SO_(2)" + "H_(2)OtoH_(2)SO_(3)`
D. `N_(2)" + "3H_(2)to2NH_(3)`

Answer

B

Explanation

In contact process for preparation of sulphuric acid, `V_(2)O_(5)` is used in the oxidation of `SO_(2)` to `SO_(3)`.
`2SO_(2)(g)+O_(2)(g)overset(V_(2)O_(5))hArr2SO_(3)`
`DeltaH=-196.6kJ`