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⭐Preparation of sodium hydroxide.........Explain in detail....
[tex]best \: answer \: will \: be \\ \: marked \: as \: a \: brainliest.... \\ wrong \: answers \: will \: be \\ \: deleted....[/tex]
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⭐Preparation of sodium hydroxide.........Explain in detail....
[tex]best \: answer \: will \: be \\ \: marked \: as \: a \: brainliest.... \\ wrong \: answers \: will \: be \\ \: deleted....[/tex]
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PREPARATION OF SODIUM HYDROXIDE
PROPERTIES
1)Also known as CAUSTIC SODA.
2) It is white powder that is a has strong basic nature.
3) It is available in pellets, flakes, granules, and as prepared solutions at a number of different concentrations.
METHODS OF PREPARATION
1)IN INDUSTRIES(CHLOR-ALKALI PROCESS)
a)Produced by the famous CHLOR-ALKALI PROCESS.
b)SODIUM HYDROXIDE is obtained from this solution by evaporation of water.
c)2NaCl+ 2H2O = 2NaOH + H2 + Cl2
2)Castner — Kellener Process
a) Inside of tank is lined with ‘ebonite.’ Anode is made of titanium. Flowing layer of mercury (Hg) at the bottom of tank serves as cathode.
By Ionization of Nacl
2NaCl e- 2Na+ + 2Cl-
Now
Reaction at cathode
2Na+ +2 e- à 2Na
Na forms Amalgam.
Reaction at Anode
2Cl-aCl2+ 2e-
now the amalgum is moved to another chamber called denuder where it is treated with water to produce NaOH.
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