The sBlock Elements - Result Question 20
####21. In which of the following processes, fused sodium hydroxide is electrolysed at a $330^{\circ} C$ temperature for extraction of sodium?
[2000]
(a) Castner’s process
(b) Down’s process
(c) Cyanide process
(d) Both ‘b’ and ‘c’
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Solution:
- (a) In Castner process, for production of $(Na)$ sodium metal, sodium hydroxide $(NaOH)$ is electrolysed at $330^{\circ} C$.