Which of the following methods is not used for preventing iron from rusting?
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?
In which of the following methods a protective zinc coating is applied to iron articles to prevent them from rusting?