Allotrope of carbon used to make black paint.

Carbon forms _________ compounds.

Covalent bonds are formed by ___________ valence electrons.

Choose the allotrope of carbon.

Which substance is used to cut glasses?

 Valency of carbon is

Steel is an alloy based on iron and

Group number of carbon is

Graphite is a good _________ of electricity.

Melting point of diamond is