Home
Class 12
CHEMISTRY
Statement : Pt(H(2))|HCl at 25^(@)C E(H...

Statement : `Pt_(H_(2))|HCl ` at `25^(@)C E_(H) = 0`.
Explanation : For primary reference electrode `E_(H//H^(+))^(@) = 0`

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:
B

Primary reference electrode is
`{:(P.t_(H_(2))),(1 atm):}|{:(HCl),(1M):}` at `25^(@)C` its `E^(@)=0`
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

The emf of a cell corresponding to the reaction Zn +2H^(+)(aq) rarr Zn^(2+) (0.1M) +H_(2)(g) 1 atm is 0.28 volt at 25^(@)C . Calculate the pH of the solution at the hydrogen electrode. E_(Zn^(2+)//Zn)^(@) =- 0.76 volt and E_(H^(+)//H_(2))^(@) = 0

The e.m.f of the M|M^(n+)(0.02 M)||H^(+)(1M)H_(2(g))(1 atm) pt at 25^(@)C is 0.81 V . Calculate the valence of metal if E_(M//M^(n+))^(@) = 0.76V .

The value of (E_(H_(2)O)//H_(2)^(@)) (1atm) Pt at 298K would b e

A solution containing H^(+) and D^(+) ions is in equilibrium with a mixture of H_(2) and D_(2) gases at 25^(@)C . If the partial pressure of both the gases are 1.0 atm. The ration [H^(+)]/[D^(+)] . Given, E_(D^(+)//D)^(@) = -0.003 C, E_("cell") = 0.006 V :

The cell designed as Pt_(H_(2))|HCl_(aq)||Hg_(2)Cl_(2),0.01 N KCl|Hg has emf of 0.271 V at 298 K and 0.2669 at 308 K . The E_(H_(2)^(2+)//Hg) is 0.260 V The E^(@) for oxidation electrode at 298 K is:

The cell designed as Pt_(H_(2))|HCl_(aq)||Hg_(2)Cl_(2),0.01 N KCl|Hg has emf of 0.271 V at 298 K and 0.2669 at 308 K . The E_(H_(2)^(2+)//Hg) is 0.260 V The heat of reaction for redox change is:

The cell designed as Pt_(H_(2))|HCl_(aq)||Hg_(2)Cl_(2),0.01 N KCl|Hg has emf of 0.271 V at 298 K and 0.2669 at 308 K . The E_(H_(2)^(2+)//Hg) is 0.260 V The temperature coefficient of cell is :

P BAHADUR-ELECTROCHEMISTRY-Exercise (9) ADVANCED NUMERICAL PROBLEMS
  1. Statement : Pt(H(2))|HCl at 25^(@)C E(H) = 0. Explanation : For pri...

    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

    |