Rusting of iron is a ……………. Change while freezing of water is a ……….. Change.

Explanation

To answer the question, we need to identify the type of changes involved in the rusting of iron and the freezing of water.

### Step-by-Step Solution:

1. **Identify the Process of Rusting of Iron**:
- Rusting occurs when iron reacts with moisture and oxygen in the air.
- This reaction leads to the formation of hydrated ferric oxide, commonly known as rust.

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