Cooking of an egg in boiling water is a

Options

A. Permanent change
B. Temporary change
C. Reversible change
D. Both (b) and (c)

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the nature of the change that occurs when an egg is cooked in boiling water.

2. **Identifying the Type of Change**: When an egg is cooked, it undergoes a transformation due to heat. This transformation changes the physical and chemical properties of the egg.

3. **Defining Permanent Change**: A permanent change is one that cannot be reversed. Once the egg is cooked, it cannot return to its raw state.

4. **Conclusion**: Since cooking an egg in boiling water results in a change that cannot be undone, it is classified as a permanent change.

5. **Final Answer**: Cooking of an egg in boiling water is a permanent change.

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