Question

D. What are the main natural sources of
alkene​

Answer 1

Sources of alkenes include pyrolysis and polymerization of ethene to produce 1-alkenes with an even number of carbon atoms from polyethene (plastics) or detergents.

Answer 2

There are various sources from which we obtain alkenes.

• Alkenes are obtained from crude oil from alkanes by a process called cracking or pyrolysis. The process involves decomposition of alkanes in the presence of heat.
• Alkenes are also produced by the polymerization of ethene using plastics like polythene to form 1-alkenes.
• 1-alkene means an alkene with its double bond at the first carbon position.