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

Which of the following method is suitable preventing an iron frying pan from rusting

Which of the following methods is suitable for preventing an iron article from rusting ? Applying grease Applying paint Coating Zinc keep the article in water

Which of the following method is used to prevent rusting of iron?

How is an iron gate prevented from rusting?

Iron can be prevented from rusting by