NEET2001Chemistryp Block Elements (Group 13 & 14)Actual

Hardest compound of boron is

Options

Amagnesium boride
Baluminium boride
Cboron nitride
Dboron carbide.

Correct answer

D. boron carbide.

Step-by-step solution

Boron carbide is written as B ₄ C . It is produced by reducing B ₂ O ₃ with C at 1600^ C . Fibres of B ₄ C have an enormous tensile strength and are used to make bullet-proof clothing.

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