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Acids, Bases and Salts — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceAcids, Bases and Salts1 Mark
MCQ
Identify the correct representation of reaction occurring during chloralkali process:
  • A
    $2NaCl(l) + 2H_2O(l) → 2NaOH(l) + Cl_2(g) + H_2(g)$
  • B
    $2NaCl(aq) + 2H_2O(aq) → 2NaOH(aq) + Cl_2(g) + H_2(g)$
  • C
    $2NaCl(aq) + 2H_2O(l) → 2NaOH(aq) + Cl_2(aq) + H_2(aq)$
  • ✓
    $2NaCl(aq) + 2H_2O(l) → 2NaOH(aq) + Cl_2(g) + H_2(g)$
✓

Answer

Correct option: D.
$2NaCl(aq) + 2H_2O(l) → 2NaOH(aq) + Cl_2(g) + H_2(g)$

 Chlor$-$alkali process is an industrial process that is used to form sodium hydroxide by electrolysis of aqueous solution of sodium chloride. It forms sodium hydroxide with hydrogen and chlorine gas as by$-$products.

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