How is sodium hydroxide manufactured in industries ? Name the process.
In this process a gas X is formed as by-product. This gas reacts with lime
water to give a compound Y, which is used as a bleaching agent in the
chemical industry. Identify X and Y and write the chemical equation of
the reactions involved.
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During the manufacture of sodium hydroxide (NaOH), hydrogen gas (H2) and chlorine gas Cl2 (X) are formed as by-products. Chlorine gas reacts with lime water [Ca(OH) 2 ]to produce bleaching powder (CaOCl2), a bleaching agent. Thus X is chlorine gas (Cl2 gas).
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