NEET Chemistry The p-Block Elements (XII) Questions Solved

NEET - 2016

When copper is heated with conc. HNO3 it produces
(a) Cu(NO3)2 and NO       (b)Cu(NO3)2,NO and NO2
(c)Cu(NO3)2 and N2O       (d) Cu(NO3)2 and NO2

(d) Nitric acid acts as an oxidising agent while reacting with copper. When dil. HNO3 reacts, reaction proceeds as:

3Cu + 8HNO3dil.           3CuNO32 +2NO + H2O

and when conc. HNO3 is used, reaction proceeds as

Cu + 4HNO3conc.           CuNO32 +2NO2 + 2H2O

Difficulty Level:

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