An aqueous solution of NaCl on electrolysis gives H_2 (g), Cl_2 (g) and NaOH according to the reaction. 2Cl^(-)

### Question Asked by a Student from EXXAMM.com Team

Q 2657601584.     An aqueous solution of NaCl on electrolysis gives H_2 (g), Cl_2 (g) and NaOH according to the reaction.
2Cl^(-) (aq) + 2H_2O ⇌ 2OH^(-) (aq) + H_2 (g) + Cl_2 (g)
A direct current of 25 A with a current efficiency of 62% is passed through 20 L of NaCl solution (20% by weight).
Write down the reactions taking place at the anode and cathode. How long will it take to produce 1 kg of Cl_2`? What will be the molarity of the solution with respect to hydroxide ion? (Assume no loss due to evaporation)
JEE 1992

#### HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

#### Access free resources including

• 100% free video lectures with detailed notes and examples
• Previous Year Papers
• Mock Tests
• Practices question categorized in topics and 4 levels with detailed solutions
• Syllabus & Pattern Analysis