ICSE Class 10 Chemistry Question 60 of 63

Study of Compounds — Nitric Acid — Question 60

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Question 1(2020)

State one relevant observation for the reaction : Action of concentrated nitric acid on copper.

Answer

Reddish brown fumes of nitrogen dioxide gas are liberated when copper reacts with conc. nitric acid.

Cu + 4HNO3 [conc.] ⟶ Cu(NO3)2 + 2H2O + 2NO2