Q. Which one of the following is used as an acid flux in metallurgy?
A) $CaO$
B) $SiO_{2}$
C) $Na_{2}CO_{3}$
D) $SO_{2}$
Explanation
(b)
$SiO_{2}$ (silica) is used as an acid flux in metallurgy. It reacts with gangue to form slag.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.