Multiple choice

The pollutant released from sulphonation process is

  1. hydrogen sulphide

  2. sulphur trioxide

  3. hydrogen cyanide

  4. ammonia gas

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hydrogen sulphide (H2S) is one of the dangerous, pungent pollutant gases with many deleterious effects on the respiratory tract. It is released by many industries as a part of the sulphonation process.