Boron nitride, BN₃, melts at approximately at 3,000^$\circ$C under high pressure. This material is almost as hard as diamond. What kind of crystal is this A) Ionic Crystal B) Covalent Crystal C) Metallic Crystal D) Molecular Crystal E) Amorphous (Not a regular crystal)

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Boron nitride is a covalent crystal, which means it is held together by shared electron pairs between boron and nitrogen atoms. The hardness approaching that of diamond is a characteristic feature of covalent crystals.

Boron Nitride, BN3, Melts at Approximately at 3,000 ∘\circ∘ C Under High Pressure

Boron Nitride, BN₃, Melts at Approximately at 3,000^$\circ$C Under High Pressure