Question

a. Identify the compound of calcium which is yellowish white powder
and is used for disinfecting drinking water. Write its chemical name
and formula. How is it manufactured? Write the chemical equation
for the reaction involved. Also list two other uses of the compound.
b. Write the balanced chemical equation of chlor-alkali process.
and this question to answer
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Answer 1

Explanation:

a) Bleaching powder is a well known chemical used as disinfectant in drinking water that is yellowish white powder. This chemical has the formula CaOCl2 that is calcium hypochlorite and this chemical is also called calcium oxychloride.

• "Bleaching powder" is made by the action of chloride gas on calcium hydroxide, the reaction being essentially:
• 2Ca(OH)2 + 2Cl2 → Ca(OCl)2 + CaCl2 + 2H2O.

b) When electricity is passed through an aqueous solution of sodium chloride (called brine), it decomposes to form sodium hydroxide. The process is termed as chlor alkali process. The balanced chemical equation is as follows:

2NaCl(aq)+2H2O(l)→2NaOH(aq)

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Answer 2

Answer:

HEY MATE !

HERE'S YOUR ANSWER

A) Bleaching powder is a well known chemical used as disinfectant in drinking water that is yellowish white powder. This chemical has the formula CaOCl2 that is calcium hypochlorite and this chemical is also called calcium oxychloride.

B) 2NaCl(aq)     +     2H2O(l)    →    2NaOH(aq)     +     Cl2(g)     + H2(g)

Hope it helps you.