Some Basic Principles Of Organic Chemistry Question 235
Question: Roasting of sulphides gives the gas X as a by-product. This is a colorless gas produce choking smell of burnt sulphur, and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic and acts as a reducing agent and it has never been isolated. The gas X is
Options:
A) $ SO_2 $
B) $ CO_2 $
C) $ SO_3 $
D) $ H_2S $
Show Answer
Answer:
Correct Answer: A
Solution:
Sulphides $ \xrightarrow{Roasting}SO_2 $
$ SO_2 $ is a colorless gas with choking smell.
$ SO_2+H_2O\to \underset{Acid}{\mathop{H_2SO_3}}, $
$ H_2SO_3 $ is a reducing agent.
