Name the types of interaction or intermolecular forces of which potential energy-distance function are given below
(a) `Eprop (1)/ (r ) ` (b) `E prop (1)/(r^(2))` (c ) `E prop (1)/(r^(3))`
(d) `E prop (1)/(r^(4))` (e) `E prop (1)/(r^(6))` .

Explanation

To solve the problem, we will analyze each potential energy-distance function provided and identify the corresponding type of intermolecular force or interaction.

### Step-by-Step Solution:

1. **Identify the first potential energy function:**
- Given: \( E \propto \frac{1}{r} \)
- This function is characteristic of **ionic interactions**. Ionic interactions occur between charged ions, where the potential energy decreases with increasing distance.

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