Question

Ethers are isomeric with:
$\left( A \right)$ Aldehydes
$\left( B \right)$ Ketones
$\left( C \right)$ Both aldehydes and ketones
$\left( D \right)$ Alcohol

Answer 1

Hint: Isomers are the compounds with the same molecular formula but different structures are called isomers. This phenomenon is known as isomerism. Isomers can be split into broad group’s mainly structural isomers and stereoisomers.

Complete step-by-step answer: Molecules that have the same molecular formula but different molecular structure. Our question is related to functional isomers (structural isomers that have the same molecular formula but with the atoms connected in different ways and therefore falling into different categories.
Ethers are isomeric with the alcohols. Let us consider an example to understand how ethers are isomeric with alcohols. Dimethylether (which is ether) is functional isomers of ethanol (which is an alcohol). They have the molecular formula $\left( {{C_6}{H_6}O} \right)$ but have different functional groups. Aldehydes and ketones are not functional groups of ethers because they have different molecular formulas as ether.

Additional Information:
Ethers: Ethers are the family of compounds that contain one or more ether groups, an oxygen atom connected to alkyl or aryl groups. They have the general formula $\left( {R - O - R'} \right)$ , where $R$ and $R'$ can be alkyl or aryl groups, they can be the same or different. Examples of ethers are diethyl ether, diethyl ether and etc.
Alcohols: Alcohols are the family of compounds that contain one or more hydroxyl $\left( { - OH} \right)$ groups attached to a single bonded alkane. They have the general formula $\left( {{C_n}{H_{2n + 1}}O} \right)$ . Examples of alcohol are methanol, ethanol and propanol etc.

Thus, the correct option is $D.$

Note: Isomers are classified into two categories such as structural isomer and stereoisomers. They are further classified into various categories.
Structural isomers are divided into five categories such as chain isomers, positional isomers, functional isomer, metamerism, tautomerism and ring-chain isomer.
Stereoisomers are divided into two categories such as geometrical and optical isomers.