Q. The function of Fe(OH)_{3} in the contact process is
A) To remove arsenic impurity
B) To detect colloidal impurity
C) To remove moisture
D) To remove dust particles
Explanation
(a)
The function of Fe(OH)_{3} in the contact process is to remove arsenic impurity. Fe (OH)_{3} is a positive sol, hence it removes arsenic impurity which is a negative sol.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.