The interconversion involved in usage of .odonil.in a washroom is

Options

A. sublimation nation
B. deposition
C. melting
D. freezing

Explanation

**Step-by-Step Solution:**

1. **Identify the Substance**: The question mentions "O'Donil," which is a type of room freshener commonly found in washrooms. It is typically in solid form.

2. **Understand the Process**: When O'Donil is used in a washroom, it releases a fragrance. This fragrance is a gas that disperses into the air.

3. **Determine the Phase Change**: The solid O'Donil converts directly into a gas without passing through the liquid phase. This process is known as sublimation.

4. **Define Sublimation**: Sublimation is the process where a solid changes directly into a gas. This is different from melting, where a solid turns into a liquid, or freezing, where a liquid turns into a solid.

5. **Conclusion**: Therefore, the interconversion involved in the usage of O'Donil in a washroom is sublimation, which is the transition from solid to gas.

**Final Answer**: The interconversion involved in the usage of O'Donil in a washroom is sublimation.

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