Discuss the physical properties of carbon.
All the allotropic forms of carbon are solids whereas its compounds exist in solid, liquid and gaseous state.
Amorphous forms of carbon and graphite are almost black in colour and opaque. Diamonds are transparent and shiny.
Its amorphous forms have low melting and boiling point compared to crystalline forms.
Carbon is insoluble in water and other common solvents. But some of its compounds are soluble in water and other solvents.
E.g Ethanol and CO2 are soluble in water.