MetallurgyHardBloom L3

Question

For extraction of sodium from NaCl, the electrolytic mixture NaCl + KCl + CaCl2 is used. During extraction process, only sodium is deposited on cathode but K and Ca do not because

Options

A.Na is more reactive than K and Ca
B.Na is less reactive than K and Ca
C.NaCl is less stable than Na3AlF6 and CaCl2
D.the discharge potential of Na+ is less than that of K+ and Ca2+ ions.

Solution

Sol. Discharge potential of Na+ less than K+ and Ca+2 ion.

Create a free account to view solution

View Solution Free
Topic: Metallurgy·Practice all Metallurgy questions

More Metallurgy Questions

Select the correct statement:...Which of the following represents the thermite reaction?...During extraction of copper, it is obtained in the form of molten matte. Which of the following is not true?...Bessemerisation is carried out forI : Fe, II : Cu, III : Al, IV : silver...In metallurgical process of aluminium, cryolite is mixed with alumina its molten statebecause it...