Question

(c) State on observation for each of the following :- [5] (i) Copper turning are heated with concentrated nitric acid. (ii) Ammonia is passed through excess chlorine. (iii) Hydrogen chloride gas is passed through silver nitrate solution. (iv) Dilute hydrochloric acid is added to sodium thiosulphate. (v) Sodium hydroxide solution is added to ferric chloride solution at first a little and then in exam​

Answer 1

Answer:

i)  When concentrated nitric acid is added to copper turning, the copper is oxidized. It forms copper nitrate. The byproduct of the reaction is Nitrogen dioxide.