Match List $I$ and $II$ and select the correct answer using the codes given below the lists :

In isolation of which one of the following metals from their ores, the use of cyanide salt is not commonly involved ?

Extraction of metal from the ore cassiterite does not involves

The element which is recovered from electrolytic process is

Consi der the following metallurgical processes

$(I)$ Heating impure metal with $CO$ and distilling the resulting volatile carbonyl (b.p. $43\,^oC$ ) and finally decomposition at $150^o-200\,^oC$ to get the pure metal

$(II)$ Heating the sulphide ore in air until a part is converted to oxide and then further heating in the absence of air to let the oxide react with unchanged metal sulphide

$(III)$ Electrolysis of the molten electrolyte containing approximately equal amounts of the metal chloride and $NaCl$ to obtained the metal

The processes used for obtaining magnesium, nickel and copper are respectively