Question

State – Any two conditions for the conversion of sulphur dioxide to sulphur trioxide.

Answer 1

1. Two condition for the conversion of SO2 to SO3

2. The mixture of SO2 gas and O2 gas must be pure and dry and in the ratio of 2 : 1 by volume.

3. The mixture should be passed over platinised asbestos or vanadium pentaoxide maintained at 450 ° C.