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Why are food cans tin-plated instead of zinc plated though zinc is cheaper than tin?

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asked Jan 30, 2018 in Chemistry by Kundan kumar (49,132 points) ● 34 ● 435 ● 1349
Why are food cans tin-plated instead of zinc plated though zinc is cheaper than tin?

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answered Jan 30, 2018 by Vikash Kumar (144,729 points) ● 8 ● 11 ● 26
 
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Tin is less reactive than zinc. It is less likely to dissolve in the liquid stored in the food cans. Tin reacts only with powerful acids whereas zinc can easily react even with tomatoes, so it is not safe to store food in zinc-plated cans.

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