Why HF acid is stored in wax coated glass bottle ?

Explanation

### Step-by-Step Solution:

1. **Understanding HF Properties**: Hydrofluoric acid (HF) is a weak acid but is highly corrosive. It is known for its ability to react with various materials, including glass.

2. **Chemical Structure of HF**: HF consists of hydrogen and fluorine. Fluorine is the most electronegative element, which means it has a strong tendency to attract electrons towards itself. This creates a highly polar bond in HF.

3. **Reactivity of HF**: Due to the highly polar nature of the HF molecule, it is very reactive. This means that it can easily break bonds with other materials, leading to chemical reactions.

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