Question

Give the name of the following molecule.

Answer 1

The name of the compound given above is DECENE.
It is the tenth member in the alkene series and it has the chemical formula C10H20. Decene is made up of ten carbon atoms with one double bond and it has twenty hydrogen atoms. The compound has many isomers, they are formed based on the position of the double bond. 

Answer 2

Answer : The name of the given compound is, 6-ethyloct-2-ene

Explanation :

The basic rules for naming alkene are :

• The longest possible carbon chain should include the carbons of double bond.
• The longest chain is given the name by replacing suffix -ane with -ene.
• The numbering is done in such a way that first carbon of double bond gets the lowest number.
• The carbon atoms of the double bond get the preference over the other substituents present in the parent chain.
• The position of double bond is indicated by placing the number before the suffix -ene.

In the given compound, the longest possible carbon chain has 8-carbon and ethyl substituent attached with 6 carbon atom and double bond present between the 2nd and 3rd carbon atom. So, the name of the molecule is, 6-ethyloct-2-ene

Thus the name of the given compound is, 6-ethyloct-2-ene