Home
Class 12
CHEMISTRY
On electrolysis of aq NaCl solution , H...

On electrolysis of aq NaCl solution , `H_(2)(g)` , `Cl_(2)(g)` and NaOH are produced :
`2Cl^(-)(aq)+2H_(2)Orarr2OH^(-)(aq)+H_(2)(g)+Cl_(2)(g)`
`62 %` efficient 25 A electricity is passed through 20L 20 % NaCl solution . ( i ) Write the electrode reactions ( ii ) How much time will it take to produce 1 kg `Cl_(2)` ( iii ) What will be the molarity at that time with respect to `OH^(-)` ? ( suppose no volume change occurs during electrolysis )

Text Solution

Verified by Experts

`Q=Ixxtxx0.62=2718309.86" "therefore t=48.715h.`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 4(Choose the correct alternative)|6 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 4(Answer the following questions)|14 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise EXERCISE (SHORT ANSWER-TYPE QUESTIONS)|62 Videos

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 8 (Answer the following questions)|10 Videos

  • ENVIRONMENTAL CHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 14(Answer the following questions)|6 Videos

Similar Questions

Explore conceptually related problems

A aqueous solution of NaCl on electrolysis gives H_(2)(g), Cl_(2)(g) , and NaOH according to the reaction : 2Cl^(-)(aq)+2H_(2)Orarr 2OH^(-)(aq)+H_(2)(g)+Cl_(2)(g) A direct current of 25A with 62% efficiency is passed through 20 L NaCl solution ( 20% by weight). (2) How long will it take to form 1kg Cl_(2) ?

A aqueous solution of NaCl on electrolysis gives H_(2)(g), Cl_(2)(g) , and NaOH according to the reaction : 2Cl^(-)(aq)+2H_(2)Orarr 2OH^(-)(aq)+H_(2)(g)+Cl_(2)(g) A direct current of 25A with 62% efficiency is passed through 20 L NaCl solution ( 20% by weight). (1) Give the reaction occurring at anode and cathode.

A aqueous solution of NaCl on electrolysis gives H_(2)(g), Cl_(2)(g) , and NaOH according to the reaction : 2Cl^(-)(aq)+2H_(2)Orarr 2OH^(-)(aq)+H_(2)(g)+Cl_(2)(g) A direct current of 25A with 62% efficiency is passed through 20 L NaCl solution ( 20% by weight). (3) What will be the molarity of the solution with respect to OH^(-) ? (Assume no loss due to evaporation)

In the reaction, H_2(g) + Cl_2(g) iff 2HCl(g)

500 mL 4 M of NaCl solution is electrolysed liberating Cl_(2)(g) at an electrode. Calculate (1) the total number of moles of Cl_(2)

Write the anode and cathode reactions for the given cell reactions. Ag(s)+(1)/(2)Cl_(2)(g)rarrAgCl(s)

The reactin that takes place when Cl_(2) gas is passed through conc. NaOH solution is

MnO_(2) , is prepared by electrolysis of an aqueous solution of mnso4 acidified with H_(2)SO_(4) . The reaction is Mn^(2+)(aq)+2H_(2)OrarrMnO_(2)(s)+2H^(+)(aq)+H^(2)(g) . 1kg of MnO_(2) , is produced , when 27A current is passed for 24 h . What is the efficiency of the current passed ? Write the cathode and anode reactions .

If 200 A current is passed through molten NaCl for 1 min , how many moles of Cl_(2) , is produced ?

CHHAYA PUBLICATION-ELECTROCHEMISTRY-NUMERICAL PROBLEMS
  1. Find the number of Al-atoms, discharged when 2 C electricity is passed...

    Text Solution

    |

  2. Find the amount of Fe^(2+) and Fe^(3+) discharged (in grams) by 1 fara...

    Text Solution

    |

  3. If 200 A current is passed through molten NaCl for 1 min , how many mo...

    Text Solution

    |

  4. If 10 C of electricity is passed through an aqueous solution of a meta...

    Text Solution

    |

  5. The cost of electrical energy in the production of "x L H"(2) at STP...

    Text Solution

    |

  6. Calculate the charge of 0.1 mol of P(2)O(7)^(4-) ion.

    Text Solution

    |

  7. To reduce 1 mol Cr(2)O(7)^(2-) to Cr^(3+) , find the amount of ele...

    Text Solution

    |

  8. The same amount of electricity required to produce 10g Ag from AgNO(3...

    Text Solution

    |

  9. 3.7 A current was passed for 6h through 0.5L 2( M ) solution of Ni(N...

    Text Solution

    |

  10. 27g Al is discharged , when 0.5 A current is passed through molten AlC...

    Text Solution

    |

  11. Calculate the time to electroplate a metal surface of area 80 cm^(2) ...

    Text Solution

    |

  12. If 1 mol electron is passed through each of AgNO(3) , CuSO(4) and A...

    Text Solution

    |

  13. Two electrolytic cells A and B contain gold salt and copper sulphate s...

    Text Solution

    |

  14. The same amount of electricity is passed through acidified water and a...

    Text Solution

    |

  15. In an electrolytic cell , molten Al(2)O(3) is taken , through which a...

    Text Solution

    |

  16. Cr is produced by electrolysis of an acidic solution of CrO(3) . The ...

    Text Solution

    |

  17. MnO(2) , is prepared by electrolysis of an aqueous solution of mnso4 ...

    Text Solution

    |

  18. On electrolysis of aq NaCl solution , H(2)(g) , Cl(2)(g) and NaOH a...

    Text Solution

    |

  19. 0.617g metal is produced at cathode during electrolysis of a metal iod...

    Text Solution

    |

  20. 500 mL 4 (M) of NaCl solution is electrolysed liberating Cl(2)(g) at a...

    Text Solution

    |