Chemistry
With reference to nature of electrodes — name three inert and three active electrodes.
Related Questions
From the ions –
(i) SO42– and OH1–
(ii) Cu2+ and H1+
(iii) Ag1+ and H1+
state giving reasons which ion is discharged at the respective electrode in each case.
Explain the terms :
(i) metal activity or electro chemical series
(ii) selective discharge of ions.
Give the electrode reactions for formation of
(i) Lead metal and bromine vapours from molten PbBr2 using inert electrodes
(ii) H2 and O2 gas [2:1] from acidified water using inert Pt electrodes.
State the reason for difference in product formed at the anode during electrolysis of aq. CuSO4 using :
(i) active electrode — copper anode
(ii) inert electrode — platinum anode.