PH3 forms bubbles when passed slowly in water but NH3 dissolves.`(T or F)`

Answer

To determine whether the statement "PH3 forms bubbles when passed slowly in water but NH3 dissolves" is true or false, we can analyze the properties of both PH3 (phosphine) and NH3 (ammonia) in relation to their solubility in water.

### Step-by-Step Solution:

1. **Understanding NH3 (Ammonia)**:
- Ammonia (NH3) is a polar molecule and can form hydrogen bonds with water molecules.
- Due to its ability to form hydrogen bonds, NH3 is highly soluble in water. When NH3 is passed into water, it dissolves readily.

2. **Understanding PH3 (Phosphine)**:
- Phosphine (PH3) is a non-polar molecule and does not have the ability to form hydrogen bonds with water.
- As a result, when PH3 is passed into water, it does not dissolve. Instead, it escapes as a gas, forming bubbles.

3. **Comparing the Two**:
- The statement claims that PH3 forms bubbles when passed slowly in water, which is true because it does not dissolve and escapes as a gas.
- It also states that NH3 dissolves in water, which is also true due to its ability to form hydrogen bonds.

4. **Conclusion**:
- Since both parts of the statement are accurate, we conclude that the statement is true.

### Final Answer:
The statement is **True**.

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