Question

Boron has an exceptionally high melting point in the group
${13}^{th}$ elements, because -

• A. boron has the smallest size in the group
• B. boron atoms are joined together by vanderwaals force
• C. boron is covalent solid
• D. boron has higher ionisation energy

Answer 1

The correct option is C boron is covalent solid

Crystalline boron have very high melting piont because it has covalent polymeric network