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.

Answer

Food cans are coated with metals to prevent corrosion by reaction of food with the can.

  • Therefore, the metal coating must be less reactive in nature. 
  • We know that Zinc lies above Tin in the reactivity series .
  • Hence, it's more reactive than Tin .

Zinc might react with the food stored in it and make it unfit for eating.

Hence, metal food cans are coated with Tin to prevent food spoilage.

   

So, the correct answer is (c) 

  1. Class 10
  2. Chapter 3 Class 10 - Metals and Non-Metals (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo