Question

The IUPAC Name of ${\mathrm{CH}}_3{\mathrm{OC}}_2{\mathrm{H}}_5$ Is

• A. Methyl Ethyl Ether
• B. Ethoxy Methane
• C. Methoxy Ethane
• D. Ethyl Methyl Ether

Answer 1

The correct option is C

Methoxy Ethane

The explanation for the correct option:

(c) Methoxy Ethane

• Ethers are classified as alkoxy alkaline in the IUPAC system.
• The ethernal oxygen is combined with a minor alkyl group to produce an alkoxy group, whilst the bigger alkyl component is considered to be an alkyl group.
• Since methyl is a smaller group it produces an alkoxy group whereas ethane is considered to be an alkyl group.
• ${\mathrm{CH}}_3{\mathrm{OC}}_2{\mathrm{H}}_5$has an IUPAC name Methoxy ethane.

The explanation for the incorrect options:

The above-given structure will be followed by all incorrect options too, but here are the reasons why they are incorrect.

(a) Methyl Ethyl Ether

• Ethers are classified as alkoxy alkaline in the IUPAC system.
• So this nomenclature is not following the required naming IUPAC rules.
• Hence this option is not correct.

(b) Ethoxy Methane

• The ethernal oxygen is combined with a minor alkyl group to produce an alkoxy group, whilst the bigger alkyl component is considered to be an alkyl group.
• Since methyl is a smaller group it produces an alkoxy group whereas ethane is considered to be an alkyl group. But here the case is the opposite.
• So this nomenclature is not following the required naming IUPAC rules.
• Hence this option is not correct.

(d) Ethyl Methyl Ether

• Ethers are classified as alkoxy alkaline in the IUPAC system.
• So this nomenclature is not following the required naming IUPAC rules.
• Hence this option is not correct.

Therefore the correct option is (c).