Q. Pure boron is best prepared by
A) Heating $B_{2}O_{3}\$with $H_{2}$
B) Heating $B_{2}O_{3}$ with Na and K
C) Heating $KBF_{4}\$with Na or K
D) Heating $BBr_{3}\ with\ H_{2}$ is presence of a catalyst
Explanation
The correct answer is Option D: Heating $BBr_{3}\ with\ H_{2}$ is presence of a catalyst.
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.