Question

The catalyst used to convert SO2 to SO3 is _______​

Answer 1

Answer:

Adding an excess of oxygen to sulfur dioxide in the presence of the catalyst vanadium pentoxide at 450 °C and 1-2 atm. The sulfur trioxide formed is added to sulfuric acid which gives rise to oleum The oleum is then added to water to form sulfuric acid which is very concentrated.

mark as Brainialist

Answer 2

Answer:

2SO2+O2=2SO3.......added O2