Question

why do we preserve processed food in tin coated iron cans

Answer 1

we preserve processed food in 10 coat iron cans because 3 is not oxidized in the contact of air and the food keep safe

Answer 2

We preserve processed food in tin-coated iron cans because tin is a non-reactive metal and does not get oxidised when comes in contact with air.

Non-reactive metals:

• Such metals are called 'non-reactive' metals as don't combine with other elements, thereby not resulting in the formation of new compounds.
• For example, Copper, Palladium, Silver, Tin etc.
• Platinum is the least reactive non-metal, and potassium is the most reactive.

Reasons for using tin-coated iron cans:

1. Tin is a non-reactive compound.
2. Tin is electroplated over iron cans to prevent iron from reacting and forming new compounds.
3. Since tin is non-reactive, it prevents iron from corroding easily.

Thus, iron cans are electroplated with tin to ensure that processed food doesn't react with iron. Tin is a non-reactive metal and does not form any new compound when exposed to the air.