Question

Boron can be obtained by various methods but not by ;

• A. pyrolysis of $B{l}_3$ (Van Arkel).
• B. reducing $BC{l}_3$ with $H_2$.
• C. electrolysis of fused $BC{l}_3$.
• D. thermal decomposition of $B_2{H}_6$.

Answer 1

The correct option is C electrolysis of fused $BC{l}_3$.

Electrometallurgy is used for the extraction of highly electropositive metals such as sodium, potassium, magnesium, calcium and aluminum. Boron is not a highly electropositive metal. Hence, boron cannot be obtained by the electrolysis of fused $BC{l}_3$