Question

why are food cans tin plated insted of zinc plated though zinc is cheaper than tin​

Answer 1

$\huge\fbox\pink{answer}$

Tin is less reactive zinc. It is less likely to dissolve in the liquid strored in the food cans. Tin reacts only with powerful acids whereas zinc easily react even with tomatoes, so it is to safe to store food in zinc- plated cans.

Answer 2

Answer:

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 place food in zinc plated cans