Explain the term 'electrometallurgy'. At which electrode is the extracted metal always deposited ?

State how activity series of metals plays a role in extraction of metals from oxides.

Give a reason why the metals – copper, silver and lead are electrorefined but K, Na and Ca are not.

State the (i) electrolyte (ii) cathode used (iii) anode used (iv) electrode reaction at cathode (v) electrode reaction at anode (vi) product at cathode and anode

during

(a) electroplating an article with nickel (b) electroplating a spoon with silver (c) purification of impure copper.