Q. In the manufacture of sulphuric acid by contact process, tyndall box is used to
A) Filter dust particles
B) Remove impurities
C) Convert SO_{2} to SO_{3}
D) Test the presence of dust particles
Explanation
(d)
Dust is a colloid which shows tyndall effect. Hence,tyndall box is used to test the presence of dust in gaseous mixture , as dust decreases the effectiveness of catalyst.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.