Question

D. C4H10
(b)
State one relevant observation for each of the following reactions:
(i) Action of concentrated nitric acid on copper.
(ii) Addition of excess ammonium hydroxide into copper sulphate solution.
(iii) A piece of sodium metal is put into ethanol at room temperature.
(iv) Zinc carbonate is heated strongly.
(v) Sulphinore is added to a tank containing oil and water, and then stirred
vith air.
or ag.
Colouring:​

Answer 1

Answer:

it is not at all difficult . try it again