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.

Food cans are coated with tin and not zinc because zinc is more reactive than tin. So, option c is correct.

We should not use zinc in food cans as they are more reactive and might react with food items present in containers and make them unhealthy and not good for eating.