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Grade: 12th pass
        
I need the answers for this Question plz!
i need the reaction between Fe and Dil HNO3 
Is H2 produced during this reaction?
It is that HNO3 is a Strong 
Oxidising acid when dil acid react with Iron?
8 months ago

Answers : (1)

Arun
13827 Points
							

Reacting iron powder with dilute nitric acid will produce Iron III Nitrate, nitrous oxide & water (the nitric acid oxidising the iron to the Fe3+ cation). The reaction proceeds slowly.

Fe + 4 HNO3 → Fe(NO3)3) + NO + 2H2O

Concentrated nitric acid renders the iron passive though - a small amount of Fe2O3 is formed and coats the metal, but that cannot be oxidised any further and the reaction then stops.

8 months ago
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