Question

5
3. i) The percentage composition of a
gas is Nitrogen 82.35%, Hydrogen
17.64%.Find the emperical formula of
the gas.( atomic wt. of N=14, H=1) ii) For
the electrorefining of copper: a)What
is the cathode made up of? b) Write
the reaction that takes place at anode.
iii) For the electrolytic reduction of
alumina, why the anode should be
replaced time to time? [2+2+1]​

Answer 1

Answer:

I don't know.............