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  • 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

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. 

 

 

 

 
 
 
 
 

Answers (1)

Sodium chloride (NaCl) is used to prepare sodium hydroxide (NaOH) in industries. And this process is called as Chloro - alkali

2NaCl (aq)+ 2H_{2}O(s)\rightarrow 2NaOH (aq)+Cl_{2}(g)H_{2}(g)

X \rightarrow Cl_{2}

Ca(OH)_{2}+Cl_{2}\rightarrow CaOCl_{2}+H_{2}O

So, from equation it is closely noticed that 

X = Cl_{2}

Y = CaOCl_{2} (calcium oxy chloride) or Bleaching powder

 

Posted by

Sumit Saini

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