Which of the following statement(s) is/are correct about corrosion?
I) It is the oxidative deterioration of metal
II) It can be prevented by oxidation
III) It is an electrochemical phenomenon
IV) After corrosion parent metal will become the ore of the metal

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

Only I, and III

Only II, and IV

Only I and II

Only I, III and IV

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

In corrosion, due to oxidation, the composition of the metal changes, and layers will be separated from time to time. So, this process is called deterioration.

In corrosion oxidation, a reduction process will take place so it is a electrochemical phenomenon

In iron after corrosion, the compound formed will be $F e_{2} O_{3} . X H_{2} O$ .

This is haematite ore.

Watch 3-min video & get full concept clarity

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

How to Join IIT after 10th

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Get Expert Academic Guidance – Connect with a Counselor Today!