Question

Nwhich non metal has a very high melting and boiling point

Answer 1

Answer:

Graphite

Explanation:

Bcz it is a non metal contain carbon

Answer 2

Answer:

Graphite (Carbon) is the nonmetal with a very high melting point at $3500^{\circ} \mathrm{C}.$

Explanation:

• At normal atmospheric pressure, carbon directly sublimes to the gaseous state.
• If the pressure is increased, Graphite, which is an allotrope of carbon, melts at $3500^{\circ} \mathrm{C}$.
• Graphite exists as a solid at room temperature. Carbon is the nonmetal with the highest sublimation point also.
• Carbon also has a very high boiling point at $4827^{\circ} \mathrm{C}$.
• Carbon and its allotropes - graphite and diamond have high melting and boiling points because the covalent bonds that hold the carbon atoms are very strong in the form of giant lattices which requires a lot of energy to disintegrate or break.