Question

हिंदी पुस्तकं वसंत मे कविता वन के मार्ग के प्रश्नोत्तर.1 से 5 तक ​

Answer 1

Answer:

Corrosion of some metals is an advantage: Example: Corrosion of aluminium is useful.

2 Al2 O3 (s) Thus a protective layer of aluminium oxide is formed on the surface of the metal, which renders the metal passive and prevents its further corrosion.