ICSE Class 10 Chemistry 2020 Solved Paper

State one relevant observation for each of the following reactions :

Question : 6

Total: 86

Action of concentrated nitric acid on copper.

Solution:

Conc. HNO3 reacts with copper to form a bluish green crystalline solid copper nitrate, a reddish brown, acidic, pungent smelling gas nitrogen dioxide is also released.

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