1.

You know that metals can be separated from molten compounds of metals by electrolysis. Find out how metals like Na, Ca and Mg are extracted.

Answer»

Na 

Produced by the electrolysis of molten NaCl. KCl is added to reduce the melting point of NaCl. 

Chemical equation: 

NaCl → Na++Cl

At cathode : Na+ + le- → Na 

At anode : 2Cl- → Cl2 + 2e-

Ca: 

Mixture of CaCl2 and 16% CaF2 are melted and undergo electrolysis. 

Mg: 

By the electrolysis of molten mixture of camalite (KCl.MgCl2 .6H2O) and NaCl in equal amounts.



Discussion

No Comment Found

Related InterviewSolutions