What does calamine solution contain ?

Explanation

**Step-by-Step Solution:**

1. **Identify the Composition of Calamine Solution:**
- The primary active ingredient in calamine solution is **Zinc Oxide**.
- Additionally, it contains **0.5% Ferric Oxide**.

2. **Understand the Nature of Calamine Solution:**
- Calamine solution is **basic** in nature. This means it has a pH greater than 7.
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