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(B) The chlor-alkali process is the electrolysis of an aqueous solution of sodium chloride (brine).In this process,electricity is passed through a con

Vedclass · Accepted Answer

$2 NaCl (aq) + 2 H_2O (l) \rightarrow 2 NaOH (aq) + Cl_2 (g) + H_2 (g)$

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(B) The chlor-alkali process is the electrolysis of an aqueous solution of sodium chloride (brine).In this process,electricity is passed through a concentrated aqueous solution of $NaCl$ (brine).This results in the decomposition of $NaCl$ to form sodium hydroxide $(NaOH)$,chlorine gas $(Cl_2)$,and hydrogen gas $(H_2)$.The chemical equation is: $2 NaCl (aq) + 2 H_2O (l) \rightarrow 2 NaOH (aq) + Cl_2 (g) + H_2 (g)$.Therefore,option $B$ is the correct representation.

Identify the correct representation of the reaction occurring during the chlor-alkali process.

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$(i)$ Name the products obtained in the chlor-alkali process.
$(ii)$ Name the gases liberated at the anode and at the cathode,respectively.
$(iii)$ Name the solution which is used as raw material in this process.

With the increase in the concentration of hydrogen ions,the $pH$ value will

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