Question

The best way to prevent rusting of iron is
(a) making it cathode
(b) putting in saline water
(c) both of these
(d) none of these

Answer 1

the correct option is -making iron cathode

Answer 2

Answer:

the option is D

Explanation:

So while making it as a cathode, the impurities would deposit in iron.

While putting it in saline water, f it forms rust due to the presence of O2 and H2O.

Finally, the answer will be D