Petroleum oil and all its by-products are hydrocarbons.
It is done by the process of Hydrogenation. Example:- C2H4 + H2 ---------> C2H6 Thus, ethene undergoes hydrogenation to form ethane
wax is a hydocarbon( a compound composed of hydrogen and carbon only).all hydrocarbons give carbon-dioxide and oxygen on combustion cxHy + O2 ---> CO2 + H2
Hydrocarbons are organic compounds made up of only hydrogen and carbon atoms. They can be classified into different groups based on their structure, such as alkanes, alkenes, and alkynes. Hydrocarbons are the main components of fossil fuels like petroleum and natural gas.