Q. The function of fluorspar in the electrolytic reduction of alumina dissolved in fused cryolite ($Na_{3}AlF_{6})$ is
A) To decrease the rate of oxidation of carbonate the anode
B) To lower the temperature of the melt and to make the fused mixture very conducting
C) As a catalyst
D) None of the above
Explanation
The correct answer is Option B: To lower the temperature of the melt and to make the fused mixture very conducting.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.