Question

The correct IUPAC name is \[C{H_3} - C{H_2} - O - CH(C{H_3}) - C{H_2} - C{H_2} - C{H_2}Cl\] .

Answer 1

Hint:Functional group: In hydrogen the atoms or groups which are other than carbon and hydrogen, are known as function groups. For example: chloride if chlorine is present in the compound. And if hydroxide group i.e. $OH$ is present then the name will be alcohol.

Complete step by step solution:
First of all we will talk about the alkanes, alkenes and alkynes.
Alkanes: The compounds which are formed by carbon and hydrogen and have only a single bond between the carbon-carbon atoms, are known as alkanes. For example: The first member of the alkane family is ethane $({H_3}C - C{H_3})$. The general formula of the alkane group is ${C_n}{H_{(2n + 2)}}$.
Alkenes: The compounds which are formed by carbon and hydrogen and have at least one double bond along with a single bond between the carbon-carbon atoms, are known as alkenes. For example: The first member of the alkene family is ethene $({H_2}C = C{H_2})$. The general formula of the alkene group is ${C_n}{H_{2n}}$.
Alkynes: The compounds which are formed by carbon and hydrogen and have at least one triple bond along with a single bond between the carbon-carbon atoms, are known as alkynes. For example: The first member of the alkyne family is ethyne $(HC \equiv CH)$. The general formula of the alkyne group is ${C_n}{H_{(2n - 2)}}$.
The first step in the IUPAC naming system is to identify the longest carbon chain.
The group in which two carbons are attached with an oxygen atom, is known as ether. Here in the question we are given with the functional group as ether. According to IUPAC rule: the alkyl group which contains more number of carbon will be treated as a parent carbon chain. Here the longest carbon chain is on the right side of the oxygen. And there is branching at first carbon (which is attached to the oxygen) and one chlorine atom at the last carbon. And total there are five carbons in the longest chain. And a second carbon ether group is present. Now the ethyl (which is present on the left side) it has a lesser number of carbon.

So, the name of the ether will be $2 - ethoxy - 4 - chloro - pentane$.

Note:
Suffix to some functional groups are as: for carboxylic acid suffix used is –oic acid, for alcohols suffix used is alkyl alcohol or in place of e from alkane add ol. For example: if an alcohol group is present in methane then the IUPAC name of the compound will be methyl alcohol.