Though zinc coating is cheaper than tin coating on iron, only tin coating is used for iron containers for storing food materials. Identify the correct reason.

Though zinc coating is cheaper than tin coating on iron, only tin coat

1.	Though zinc coating is cheaper than tin coating on iron, only tin coating is used for iron containers for storing food materials. Identify the correct reason.
Answer» Zinc is less reaction than tin. Zinc acts as a preservative. Tin doesn't react with the COMPONENTS of food meterial. Tin LOWERS the ambient temperature and thus prevents spoilga of food. Solution :Tin diesn't react with the contents of food material while Zn reacts and leads to SPOILAGE of food. Hence in tin coated CONTAINERS are PREFERRED over zinc coated ones as tin is less reactive than Zn.