Extraction of Chlorine from brine Flashcards Preview

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Flashcards in Extraction of Chlorine from brine Deck (6)
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1
Q

Besides reductions, some extractions are based on oxidation particularly for non-metals. Give an example

A

A very common example of extraction based on
oxidation is the extraction of chlorine from brine (chlorine is abundant in sea water as common salt) .
2Cl–(aq) + 2H2O(l) → 2OH–(aq) + H2(g) + Cl2(g)

2
Q

What is name of the process used to extract chlorine

A

Castner-Kellener process

3
Q

At which electrode is chlorine obtained during electrolysis?

A

At the anode

4
Q

What are the products obtained in the electrolysis of brine?

A

Sodium hydroxide(electrolytic cell), Chlorine(anode) and hydrogen(cathode)

5
Q

Give an example of the oxidation-reduction method used in case of metals

A

In the metallurgy of gold or silver

6
Q

How is chlorine obtained?

A

By the electrolysis of brine(aqueous sodium chloride)