Which of the following is a functional isomer of Dimethyl ether?
(A) Ethanol
- (B) Mthanol
- (C) 2 - methlyl propanol
- (D) None
The Correct Option is A
Solution and Explanation
To solve this question, we need to understand the concept of functional isomers in organic chemistry.
Functional Isomers: These are compounds that have the same molecular formula but differ in the functional group present, leading to different chemical properties.
Dimethyl Ether: The molecular formula for dimethyl ether is \text{C}_2\text{H}_6\text{O}, where the ether functional group is present (R-O-R').
We need to find a compound with the same molecular formula but a different functional group.
- Option (A) Ethanol: Ethanol also has the molecular formula \text{C}_2\text{H}_6\text{O}. However, ethanol contains a hydroxyl (OH) functional group, classifying it as an alcohol, which is different from the ether group in dimethyl ether. Thus, ethanol is a functional isomer of dimethyl ether.
- Option (B) Methanol: Methanol has the molecular formula \text{CH}_4\text{O}, which is different from \text{C}_2\text{H}_6\text{O}, and hence is not an isomer.
- Option (C) 2-methylpropanol: This compound has a different molecular formula \text{C}_4\text{H}_{10}\text{O}, making it neither a structural nor a functional isomer of dimethyl ether.
- Option (D) None: This option assumes that none of the other compounds are functional isomers, but as explained, ethanol is a functional isomer.
Thus, the compound ethanol (option A) is a functional isomer of dimethyl ether.
Top Questions on Ethers
IUPAC name of the given ether is:
- MHT CET - 2024
- Chemistry
- Ethers
Replacement of a hydrogen atom in a hydrocarbon by an alkoxy or carboxyl group yields a class of compounds known as ethers. Ethers are classified as symmetrical or unsymmetrical on the basis of groups attached to the oxygen atoms. Diethyl ether, a symmetrical ether, has been widely used as an inhalation anesthetic. Ethers can be prepared by acid catalyzed intermolecular dehydration of alcohols and Williamson's synthesis. Acid catalyzed dehydration of alcohols is not generally preferred as it gives a mixture of elimination and substitution products. In Williamson's synthesis, an alkyl halide is allowed to react with sodium alkoxide. Ethers containing substituted Alkyl groups may also be prepared by this method. The C-O bond in ether is weakly polar and is cleaved under drastic conditions with excess of hydrogen halides. In electrophilic substitution, the alkoxy group deactivates the aromatic ring and directs the incoming group to ortho and para positions.
- Which of the following reagents is required for the conversion of Benzene to methyl benzoate?
(A) Br\(_2\)/FeBr\(_3\)
(B) Mg, dry Ether
(C) CO\(_2\), H\(_3\)O\(^+\)
(D) Methanol, Conc. H\(_2\)SO\(_4\) - What happens when C₆H₅–O–R is treated with HX?
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