Tin cans used for storing food are made by electroplating tin on which of the following metals?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Iron
Food cans are made of iron coated with a thin layer of tin by electroplating. Tin is less reactive than iron, so it does not react with the food, and the coating keeps the iron from rusting and from spoiling the food.