Which of the followingg is an isomer of ethanol?

Options

A. Methanol
B. Acetone
C. Diethylether
D. Dimethylether

Answer

To determine which of the given options is an isomer of ethanol, we first need to understand what isomers are. Isomers are compounds that have the same molecular formula but different structural formulas.

1. **Identify the molecular formula of ethanol**:
Ethanol has the molecular formula C2H6O.

2. **Analyze the options**:
- **A) Methanol**: The molecular formula is CH3OH, which corresponds to C1H4O. This does not match with C2H6O.
- **B) Acetone**: The molecular formula is CH3C(=O)CH3, which corresponds to C3H6O. This does not match with C2H6O.
- **C) Diethyl ether**: The molecular formula is CH3CH2OCH2CH3, which corresponds to C4H10O. This does not match with C2H6O.
- **D) Dimethyl ether**: The molecular formula is CH3OCH3, which corresponds to C2H6O. This matches with the molecular formula of ethanol.

3. **Conclusion**:
Since dimethyl ether has the same molecular formula as ethanol (C2H6O) but a different structure, it is an isomer of ethanol.

**Final Answer**: D) Dimethyl ether is an isomer of ethanol.

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