Home Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Compounds of Boron and Aluminium Crystalline boron in small amounts may be ob…
Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Compounds of Boron and Aluminium Single Correct MCQ
Published on: August 11, 2026

Crystalline boron in small amounts may be obtained by :

A
Reducing BCl3 with H2
B
Pyrolysis of BiI3
C
Thermal decomposition of diborane
D
All of these

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Verified by Experts
The correct answer is:
D

2BX3 + 3H2 2B + 6HX

(X = Cl or Br)

2Bl3 2B + 3I2.

(Van Arkel mehod).

B2H6 2B + 3H2.

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