Which of the following methods is suitable for preventing an iron frying pan from rusting?
NCERT Solution for Class Tenth Science Chapter 3
Metals and Non-metals
CBSE NCERT Book Session-2022-2023
Exercises Questions
Page No-56
Questions No-2
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(c) Applying a coating of zinc
(We can also apply grease and paint to prevent iron from rusting. However, in case of iron frying pan, grease and paint cannot be applied because when the pan will be heated and washed again and again, the coating of grease and paint would get destroyed.)
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(c) Applying a coating of zinc
Rusting can be prevented by applying grease and oil. But, in case of an iron frying pan, grease and paint cannot be applied because when the pan is heated and washed again and again, the coating of grease and paint gets destroyed. Therefore Zinc coating is done i.e. galvanisation to prevent rusting.
To prevent an iron frying pan from rusting, you can use various methods and a combination of them for the best results. Here are some suitable methods for preventing rust on an iron frying pan:
1. Seasoning: Seasoning is the process of applying a thin layer of oil or fat to the surface of the iron pan and then heating it. This creates a protective layer that prevents moisture from coming into direct contact with the iron. Regular seasoning is one of the most effective ways to prevent rust.
2. Drying and storing properly: After using the pan, make sure it is completely dry before storing it. Even a small amount of moisture can lead to rust. You can place a paper towel or cloth inside the pan to absorb any residual moisture.
3. Cooking with oils or fats: Using oil or fat while cooking creates a natural non-stick coating on the pan and provides some protection against rust. You can also rub a small amount of oil on the pan’s surface after cleaning and drying.
4. Avoiding acidic or corrosive foods: Refrain from cooking highly acidic foods in an iron pan, as these can strip away the protective layer. If you do cook acidic foods, be sure to re-season the pan afterward.
5. Hand washing and gentle cleaning: Avoid using abrasive scouring pads or harsh detergents that can remove the seasoned layer. Instead, clean the pan with mild soap and a soft sponge or brush.
6. Regular maintenance: Check the pan regularly for any signs of rust or loss of seasoning, and re-season as needed.
7. Using a lid or covering: When storing the pan, you can place a lid or cover on it to protect it from exposure to moisture in the air.