First slide

Corrosion

Question

The metal that forms a self-protecting film of oxide to prevent corrosion is :

Easy

A

Na
B

Al
C

Cu
D

Au

Solution

When aluminium surfaces are exposed to the atmosphere a thin invisible oxide layer forms immediately, which protects the metal from further oxidation.
$[∵ E_{OP}^{\circ}$ of Al is much longer]

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App