(e) (1) Name the two catalysts that can be used in the converter
(II) What is the function of heat exchanger?
(f) Sulphuric (VI) Oxide is not dissolved directly into water? Explain
(g) (1) Name the main pollutant in the contact process.
(II) How can the pollution in (g) (1) above be controlled

the correct answer is:

a. formation of precipitation

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.