Arrange `HClO_(4), HClO_(3), HClO_(2), HClO` in order of (i) decreasing acidic strength (ii) increasing oxidizing power. Give reasons.

Explanation

To solve the problem, we need to arrange the compounds HClO₄, HClO₃, HClO₂, and HClO in two ways: (i) in order of decreasing acidic strength and (ii) in order of increasing oxidizing power.

### Step-by-Step Solution:

#### (i) Decreasing Acidic Strength:

1. **Determine the Oxidation States of Chlorine in Each Compound:**
- For HClO₄:
...