1: Write the chemical equation involved in the preparation of sodium hydroxide? Name theprocess .2: Why does bleaching powder smell strongly of chlorineand does not dissolve completely in water?
Question
1: Write the chemical equation involved in the preparation of sodium hydroxide? Name theprocess .2: Why does bleaching powder smell strongly of chlorineand does not dissolve completely in water?
Solution
1: Sodium hydroxide, also known as lye or caustic soda, is usually prepared industrially by the electrolysis of sodium chloride solution in a process known as the Chloralkali process. The chemical equation for this process is:
2NaCl + 2H2O → 2NaOH + Cl2↑ + H2↑
In this process, chlorine and hydrogen gases are also produced as by-products.
2: Bleaching powder, also known as calcium hypochlorite, smells strongly of chlorine because it releases chlorine gas when exposed to air. The chemical formula for bleaching powder is Ca(OCl)2. It does not dissolve completely in water because it is only partially soluble. When it is mixed
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