Chemistry, asked by MrAmazing9053, 1 year ago

Why does reactivity of aluminium decreases when dipped in hno3?

Answers

Answered by Anonymous

Heyaa...

Nitric acid is a string oxidising agent which when reacted with Al metal forms an oxide layer of Aluminium oxide

This layer prevents the reaction of aluminium with HNO3 completely thereby causing decrease in its reactivity

This phenomenon is said as passive oxidation of Al

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