1aluminium is rendered passive with HNO3 due to the formation of an oxide layer on the surface which odes not allow further reaction............
Al doesn't react with HNO3. this is true or false. Why????
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39I think it's true...passive film of oxide forms on surface of aluminium that prevents further oxidation by HNO3. Read this somewhere...not sure.
1But HNO3 in very very dilute form reacts with Mg..and other metals.....
though i hv nvr seen it react with Al
1look guys according 2 my knowledge Al reacts With Conc HNO3. When Al heated with conc.HNO3 it becomes passive due 2 d formation of an oxide layer on d surface of the metal.
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1Ya pritish,lubu and rooney u all r right.conc HNO3 renders Be,Al passive(diagonal relationship) and also Fe
1yes I'm stating some more compounds which r rendered passive
Cr , Ti , V , Co , Ni , Fe( passive with both K2C2rO7 and HNO3 )
are rendered passive by K2C2rO7.
1why compounds like Al n stated above are rendered passive when react with HNO3 conc?