Ether which is lipuid at room temperature is :

Options

A. `C_(2) H_(5) OCH_(3)`
B. `CH_(3) OCH_(3)`
C. `C_(2) H_(5) OC_(2) H_(5)`
D. None of these

Answer

To determine which ether is liquid at room temperature, we can follow these steps:

### Step 1: Identify the Ethers
We have three ethers to consider based on the options provided:
1. Methoxyethane
2. Dimethyl ether
3. Diethyl ether

### Step 2: Check the Physical State at Room Temperature
Next, we need to check the physical state (solid, liquid, or gas) of each ether at room temperature (approximately 25°C).

- **Methoxyethane (C2H6O)**:
- Boiling Point: 7.6°C
- Since its boiling point is below room temperature, methoxyethane is a gas at room temperature.

- **Dimethyl Ether (C2H6O)**:
- Boiling Point: -24.9°C
- This ether is also a gas at room temperature because its boiling point is well below 25°C.

- **Diethyl Ether (C4H10O)**:
- Boiling Point: 34.6°C
- Since its boiling point is above room temperature, diethyl ether is a liquid at room temperature.

### Step 3: Conclusion
Based on the boiling points, we conclude that the ether which is liquid at room temperature is **Diethyl Ether**.

### Final Answer
The ether which is liquid at room temperature is **Diethyl Ether**.

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