Answer the following question
In which compound forms does carbon occur?
Carbon occurs in the following compounds:
Hydrocarbons: These are organic compounds which are made up of carbon and hydrogen.
CO2: Carbon also exisits as carbon dioxide and occurs in the air in free state. it is also found as a salt in chalk and limestone. It is given out during combustion of wood, fossil fuel etc.
CH4: Carbon also exists as methane.