Question

2. Write two methods to prevent rusting? 3. What will happen if the cut fruits and vegetables get oxidised?​

Answer 1

Answer:

Explanation:

2)(a) The rusting of iron can be prevented by painting, oiling, greasing or varnishing its surface.

(b) Galvanisation is another method of protecting iron from rusting by coating it with a thin layer of zinc.

3)Answer: When fresh fruits and vegetables are peeled or cut open, the enzyme called polyphenol oxidase (also called tyrosinase) contained in the cells is exposed to and reacts with the oxygen in the air. The reaction that occurs, which is called oxidation, is what turns the fruits and vegetables brown.

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