Home
Class 12
CHEMISTRY
For Pt(H(2))|H(2)O , reduction potential...

For `Pt(H_(2))|H_(2)O` , reduction potential at `298 K` and `1 atm` is `:`

A

`-0.23V`

B

`-0.41V`

C

`0.41V`

D

`0.00V`

Text Solution

Verified by Experts

The correct Answer is:
b
`pH ` of `H_(2)O=7`
`:. E_(2H^(o+)|H_(2))=-0.059pH=-0.059xx7=-0.41V`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise Ex 3.2 (Objective)|26 Videos

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise Ex 3.3 (Objective)|10 Videos

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise Solved Examples(Electrolysis And Electrolytic Cells)|12 Videos

  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY|Exercise Archives Subjective|29 Videos

  • GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS

    CENGAGE CHEMISTRY|Exercise Archives (Subjective)|14 Videos

Similar Questions

Explore conceptually related problems

Pt(H_(2))(1atm)|H_(2)O , electrode potential at 298K is

The reduction potential of a hydrogen electrode at pH 10 at 298K is : (p =1 atm)

For the equilibrium H_(2) O (1) hArr H_(2) O (g) at 1 atm 298 K

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

For the equilibrium H_(2)O(l) iff H_(2)O(g) at 1 atm and 298 K

Equilibrium constants of T_(2)O (T or _(1)^(3)H is an isotope " of "_(1)^(1)H) and H_(2)O are different at 298 K. Let at 298 K pure T_(2)O has pT (like pH) is 7.62. The pT of a solution prepared by adding 10 mL. of 0.2 M TCl to 15 mL of 0.25 M NaOT is:

CENGAGE CHEMISTRY-ELECTROCHEMISTRY-Ex 3.1 (Objective)
  1. If all species are in their standard states, which of the following is...

    Text Solution

    |

  2. The standard EMF of a galvanic cell involving cell reaction with n=2 i...

    Text Solution

    |

  3. The correct order of reactivity of K,Mg,Zn and Cu with water according...

    Text Solution

    |

  4. For Pt(H(2))|H(2)O , reduction potential at 298 K and 1 atm is :

    Text Solution

    |

  5. Consider the cell : Pt|H(2)(p(1)atm)|H^(o+)(x(1)M) || H^(o+)(x(2)M)|...

    Text Solution

    |

  6. If E^(c-).(Fe^(3+)|Fe) and E^(c-).(Fe^(2+)|Fe) are =-0.36 V and -0.439...

    Text Solution

    |

  7. Pt(Cl(2))(p(1))|HCl(0.1M)|(Cl(2))(p(2)),Pt cell reaction will be ender...

    Text Solution

    |

  8. Consider the following cell with hydrogen electrodes at difference pre...

    Text Solution

    |

  9. Consider the following cell reaction Zn +2Ag^(o+)rarr Zn ^(2+)+2Ag....

    Text Solution

    |

  10. The standard reduction potentials of three metals A,B, and C are +0.5 ...

    Text Solution

    |

  11. Calculate the maximum work that can be obtained from the decimolar Dan...

    Text Solution

    |

  12. Stronger the oxidizing agent, greater is the

    Text Solution

    |

  13. Consider the cell Ag(s)|AgBr(s)Br^(c-)(aq)||AgCl(s),Cl^(c-)(aq)|Ag(s) ...

    Text Solution

    |

  14. The pH of LHE in the following cell is : Pt, H(2)(1atm)|H^(o+)(x M)...

    Text Solution

    |

  15. At what concentration of [overset(c-)(O)H] does the following half rea...

    Text Solution

    |

  16. If hydrogen electrodes dipped in two solutions of pH=3 and pH=6 are co...

    Text Solution

    |

  17. Consider the cell reaction : Mg(s)+Cu^(2+)(aq) rarr Cu(s) +Mg^(2+)(a...

    Text Solution

    |

  18. E^(c-).(red) of different half cell are given as : E^(c-).(Cu^(2+)|C...

    Text Solution

    |

  19. For the reaction : A+2B^(3+) rarr 2B^(2+)+A^(2+) E^(0) of the give...

    Text Solution

    |

  20. Excess of solid AgCl is added to a 0.1 M solution of Br^(c-) ions. E^(...

    Text Solution

    |