Question

लोहे को जंग से बचाने के किन्हीं दो उपयोग को लिखे​

Answer 1

(i) Use of lubricants . Using lubricants can prevent rust .

(ii) Galvanization . Galvanization or covering of metal surfaces also prevents the reaction of iron with air and water thereby preventing rust.

(iii) Coatings.

(iv) Protection.

its the answer...