Question

Compound A is commonly used in cooking food when a is treated with water and electricity is passed it forms another compound which is used in preparation of soap identify write formula of the compound A and B be write the chemical reaction involved C name the process D name the electron and which H2 and cl2 liberate

Answer 1

Explanation:

compound A isNacl B is Naoh

process chloralkali process.

Nacl+ H2o= Naoh + h2+ cl2

Answer 2

The name of the compounds and their reactions are as follows:

• The name of compound A is Sodium Chloride(NaCl) which is commonly called Table salt or Common Salt which is commonly used in cooking food.
• When compound A is treated with water and electricity Sodium Hydroxide(NaOH) is formed. It is compound B. The chemical reaction for the formation of Sodium Hydroxide is given below:

                    2NaCl + 2H₂O -------> 2NaOH + H₂ + Cl₂

• In addition to giving out hydroxide, Chlorine and Hydrogen gases are also liberated.
• This process is called as Chlor-alkali process. When electricity is passed through an aqueous solution of sodium chloride which is  called brine, it decomposes to form sodium hydroxide, chlorine gas, and hydrogen gas.
• The process is named Chlor-alkali because the term Chlor-alkali is a combination of two chemicals i.e. chlorine and alkali which are produced simultaneously because of the electrolysis of saltwater.

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