How is sodium hydroxide manufacu
roxide manufactured in industries ? Name the process.
In this process a gas X is formed as
gas X is formed as by-product. This gas reacts with me
water to give a compound y, whic
e compound Y, which is used as a bleaching agent in the
chemical industry. Identify X and 1
ustry. Identify X and Y and write the chemical equation of
the reactions involved.
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Explanation:
It is manufactured by chloralkali process in industries by electrolysis of aqueous sodium chloride along with chlorine and hydrogen as by products .
2Na+ + 2H2O + 2e− → H2 + 2NaOH
Chlorine gas attains bleaching power when reacts with lime water by forming calcium oxy chloride CaOCl2.
Ca(OH)2+Cl2⟶CaOCl2+H2O
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