Question

Why the rate of reaction becomes slow when nitric acid reacts with Aluminium? ​

Answer 1

Answer:

When aluminium is placed in an acid it may initially appear not to react. This is because a layer of aluminium oxide forms on the surface of the aluminium due to prior reaction with the air and acts as a protective barrier. ... The hydrochloric acid quickly turns a dull grey colour as aluminium chloride is formed.

Explanation:

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Answer 2

Answer:

When aluminium is placed in an acid

it may initially appear not to react .This

is because a layer of aluminium oxides from

on the surface of aluminium due to

prier reaction with the air and acts as a

protective barrier.

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