4. Food cans are coated with tin and not with zinc because
(a)
zinc is costlier than tin.
(b)
zinc has a higher melting point than tin.
(c)
zinc is more reactive than tin.
(d) zinc is less reactive than tin.
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Answers
Answer:
Food cans' are coated with 'tin' and not with zinc because zinc is a 'more reactive compound' as compared to tin. Explanation: Zinc can react naturally with acids and bases present on food. Since zinc is an amphoteric substance it can react with both acids and bases.
Answer:
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Explanation:
Food cans' are coated with 'tin' and not with zinc because zinc is a 'more reactive compound' as compared to tin. Explanation: Zinc can react naturally with acids and bases present on food. Since zinc is an amphoteric substance it can react with both acids and bases.
Explanation:
Zinc can react naturally with acids and bases present on food. Since zinc is an amphoteric substance it can react with both acids and bases.
Also steam reacts with Zinc. Hence if food containing these acids and bases come in contact with zinc then the food becomes ‘unfit for consumption’.
Also the malleable form of pure zinc is much more expensive as compared to tin. So food is packed in tin container.