- Laboratory preparation of nitric acid from potassium nitrate or sodium nitrate; the laboratory method to be
studied in terms of reactants, products, conditions, equations, setting up of apparatus, diagram, precautions, collection and identification
- Manufacture of Nitric acid by Ostwald’s process (Only equations with conditions where applicable).
The action of heat on the blue crystalline solid A, gives a reddish brown gas B, a gas which relight a glowing splint and leaves a black residue. When gas C, which has a rotten egg smell, is passed through a solution of A, a black ppt. is formed.
(a) Identify A, B and C
(b) Write equation for action of heat on A.
(c) Write equation between solution of A and gas C.
Choose the correct answer:
The nitrate salt which does not give a mixture of NO2 and O2 on heating is:
(1) `AgNO_3` (2) `KNO_3`
(3) `Cu(NO_3)_2 ` (4)` Zn(NO_3)_2`