Steel is an alloy based on iron and

Choose the elements having most number of compounds.

Group number of carbon is

Covalent bonds are formed by ___________ valence electrons.

Allotrope of carbon used to make black paint.

Choose the allotrope of carbon.

Graphite is a good _________ of electricity.

Choose the allotrope of carbon.

Which substance is used to cut glasses?

Carbon forms _________ compounds.