Chemistryhard · Past Paper
In the contact process for making sulfuric acid, what is the catalyst used in the step: $2SO_2 + O_2 \rightleftharpoons 2SO_3$?
AIron
BManganese dioxide
CVanadium pentoxide
DNickel
✓ Correct Answer: C — Vanadium pentoxide
Vanadium pentoxide ($V_2O_5$) is the catalyst used to convert sulfur dioxide to sulfur trioxide efficiently.
Share this question
More from Chemistry
- Which metal is used as a 'getter' in vacuum tubes to remove traces of oxygen?
- In the reaction of CO2 with ammonia at high pressure and temperature, the product formed is:
- Which of the following represents 'Producer gas'?
- The process of conversion of wood into coal under high pressure and temperature is called:
- Which element is the most abundant metal in the Earth's crust?