Question 5

(a) Which of the following methods is not used in preventing iron from rusting?

1. Applying a coating of zinc

2. Applying a coating of lead

3. Applying paint

4. Applying grease

(b) Planting more trees in and around the industrial regions ensures good quality air. True or False?

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Solution

(a) Applying a coating of lead

(b) True, planting more trees in and around the industrial regions ensures good quality air.

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Similar questions

Which of the following methods is suitable for preventing an iron frying pan from rusting?

(a) Applying grease

(b) Applying paint

(d) all of the above.

The process of applying a protective coating of zinc on iron or steel to prevent them from rusting is called ___.

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