On being slowly passed through water, `PH_3` forms bubbles but `NH_3` dissolves. Why is it so ?

Explanation

To answer the question of why `PH_3` forms bubbles when passed through water while `NH_3` dissolves, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Understanding the Compounds**:
- `PH_3` is phosphine, and `NH_3` is ammonia. Both compounds consist of a central atom (phosphorus for `PH_3` and nitrogen for `NH_3`) bonded to hydrogen atoms.

2. **Behavior in Water**:
...