Home
Class 12
CHEMISTRY
Statement : The cathode of electrolytic ...

Statement : The cathode of electrolytic cell during electrolysis of `NaCl_((aq.))` on additon of little litmus shows a blue colour.
Explanation : At cathode : `2H^(+) + 2e rarr H_(2)`. The reaction at cathode give rise to an increase in `pH` ranging in alkaline medium and litmus shows blue colour.

A

`S` is correct but `E` is wrong

B

`S` is wrong but `E` is correct.

C

Both `S` and `E` are correct and `E` is correct explanation of `S`.

D

Both `S` and `E` are correct but `E` is not correct explanation of `S`.

Text Solution

Verified by Experts

The correct Answer is:
C
Explanation is correct reason for statement.
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    P BAHADUR|Exercise (A) ELECTROLYSIS|2 Videos

  • ELECTROCHEMISTRY

    P BAHADUR|Exercise (B) ELECTRODE POTENTIAL AND EMF|1 Videos

  • DILUTE SOLUTION AND COLLIGATIVE PROPERTIES

    P BAHADUR|Exercise Exercise 9 Advanced Numerical|12 Videos

  • MOCK TEST PAPER

    P BAHADUR|Exercise Exercise|92 Videos

Similar Questions

Explore conceptually related problems

In H_(2) - O_(2) fuel cell the reaction occuring at cathode is:

The cathodic reaction in electrolysis of dilute H_(2)SO_(4) with platinum electrode is:

In H_(2)-O_(2) fuel cell, the reaction occurring at cathode is

In electrolysis of NaCl when Pt electrode is taken H_(2) is liberated at cathode while Hg cathode it forms sodium amalgam because

In the electrolysis of a solution containing H^(+) and Cu^(2+) ions, at the cathode H^(+) ions are liberated in preference to Cu^(2+) ions. Is the statement correct ?

what products are formed during the electrolysis of concentrated aqueous solution of sodium chloride? (I) Cl_2 (g) at anode (II) NaOH as electrolyte (III) H_2 (G) At cathode

P BAHADUR-ELECTROCHEMISTRY-Exercise (9) ADVANCED NUMERICAL PROBLEMS
  1. Statement : The cathode of electrolytic cell during electrolysis of Na...

    Text Solution

    |

  2. A current of 0.5 A is passed through acidulated water for 30 minute. C...

    Text Solution

    |

  3. A copper cell containing 5% solution of CuSO(4).5H(2)O and a silver ce...

    Text Solution

    |

  4. Some quantity of electricity being used to liberate iodine (at anode) ...

    Text Solution

    |

  5. A test for complete romovel of Cu^(2+) ions form a solution of Cu((aq....

    Text Solution

    |

  6. A Zn rod weighing 25g was kept in 100 mL of 1M CuSO(4) solution. After...

    Text Solution

    |

  7. Assume that impure copper contains only Fe, Au and Ag as impurities. A...

    Text Solution

    |

  8. 50 mL of 0.1 M CuSO(4) solution is electrolysed using Pt electrodes wi...

    Text Solution

    |

  9. An oxide of metal ("at. wt. "= 112) contain 12.5% O(2) by weight. The ...

    Text Solution

    |

  10. 19g fused SnCl(2) was electrolysed using inert electrodes. 0.119g Sn w...

    Text Solution

    |

  11. A lead storage cell is discharged which causes the H(2)SO(4) electroly...

    Text Solution

    |

  12. Two litre solution of a buffer mixture containing 1.0 M NaH(2)PO(4) an...

    Text Solution

    |

  13. A current of 40 microampere is passed through a solution of AgNO(3) fo...

    Text Solution

    |

  14. Suppose a fully charged battery containes 1.50 litre of 5.0 M H(2)SO(4...

    Text Solution

    |

  15. In an analytical determination of aresenic , a solution containing are...

    Text Solution

    |

  16. Assuming that a constant current is delivered, how many kW-h of electr...

    Text Solution

    |

  17. Find the e.m.f. of the following cell at 18^(@)C taking the degree of ...

    Text Solution

    |

  18. If it is disreed to construct the following voltaic cell to have E(cel...

    Text Solution

    |

  19. The e.m.f. of the obtained by combining Zn and Cu electrodes of Danie...

    Text Solution

    |

  20. Calcualte the potential of an indicator electrode versus the standard ...

    Text Solution

    |

  21. An electrode is prepared by dipping a silver strip into a solution sat...

    Text Solution

    |