Home
Class 12
CHEMISTRY
Given that the standard electrode (E^(@)...

Given that the standard electrode` (E^(@))` of metals are :
`K^(+)//K=- 2.93 V, Ag^(+)//Ag = 0.80 V, `
` Mg^(2+)//Mg =- 2.37 V, Cr^(3+)// Cr =- 0.74 V, Hg^(2+)//Hg = 0.79 V`.
Arrange these metals in an increasing order of their reducing power.

Text Solution

Verified by Experts

`AgltCultFeltCrltMgltK`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISRY

    RESONANCE ENGLISH|Exercise Advanced Level Problems|88 Videos

  • ELECTROCHEMISRY

    RESONANCE ENGLISH|Exercise Part 2|23 Videos

  • ELECTRO CHEMISTRY

    RESONANCE ENGLISH|Exercise PHYSICAL CHEMITRY (ELECTROCHEMISTRY)|53 Videos

  • EQUIVALENT CONCEPT & TITRATIONS

    RESONANCE ENGLISH|Exercise Part -IV|22 Videos

Similar Questions

Explore conceptually related problems

Given that the standard elctrode potentials (E^(Theta)) of metals are: K^(+)//K= -2.93V, Ag^(+)//g=0.80V , Cu^(2+)//Cu=0.34V, Mg^(2+)//Mg=-2.37V , Cr^(3+)//Cr= -0.74V, Fe^(2+)//Fe= -0.44V . Arrange these metals in an increasing order of their reducing power.

Given standard electrode potentials K^(o+)|K=-2.93V, Ag^(o+)|Ag=0.80V , Hg^(2+)|Hg=0.79V Mg^(2+)|Mg=-2.37V,Cr^(3)|Cr=-0.74V Arrange these metals in their increasing order of reducing power.

Given standard electrode potentials K^(o+)|K=-2.93V, Ag^(o+)|Ag=0.80V , Hg^(2+)|Hg=0.79V Mg^(2+)|Mg=-2.37V,Cr^(3)|Cr=-0.74V Arrange these metals in their increasing order of reducing power.

The potential associated. with each electrode is known as electrode potential. If the concentration of each species taking part in the electrode reaction is unity (if any gås appears in the electrode reaction, it is confined to 1 atmospheric pressure) and further the reaction is carried out at 298 K, then the potential of each electrode is said to be the standard electrode potential. By convention, the standard electrode potential of hydrogen electrode is 0:0 volt. The electrode potential value for each electrode process is a measure, of relative tendency of the active species in the process to remain in the oxidized / reduced form. A negative E^@ means that the redox couple is a stronger reducing agent than the H^(+)//H_2 couple. A positive E mears that the redox couple is a weaker reducing agent than. the H^(+)//H couple. The metal with greater positive value of standard reduction potentlal forms the oxide of greater thermal stability: Given the standard reduction potentials. E_(K^(+)//K)^(@)=-2.93V, E_(Ag^(+)//Ag)^(@)=+0.80V, E_(Hg^(+)//Hg)^(@)=0.79V E_(Mg^(+)//Mg)^(@)=-2.37V, E_(Cr^(3+)//Cr)^(@)=-0.74V The correct increasing order of reducing power is:

Given the standard electrods potential K^(+)//K=-3.02V Cu^(+2)//Hg=+0.34V Hg^(+2)//Hg=0.92 Cr^(+3)//Cr=-0.74V Decreasing order of reducing power of these element is

Given E_(Ag^(+)//Ag)^(@)=0.80V , E_(Mg^(2+)//Mg)^(@)=-2.37V , E_(Cu^(2+)//Cu)^(@)=0.79 E_(Hg^(2+)//Hg)^(@)=1.71V Which of the following statements is/are correct?

E^(@) values of Mg^(2+)//Mg is -2.37V, of Zn^(2+)//Zn is -0.76V and Fe^(2+)// Fe is - 0.44V Which of the statement is correct ?

Given : E^(c-)._(Ag^(o+)|Ag)=0.80V, E^(c-)._(Mg^(2+)|Mg)=-2.37V, E^(c-)._(Cu^(2+)|Cu)=0.34V,E^(c-)._(Hg^(2+)|Hg)=0.79V Which of the following statements is // are incorrect ?

The values of some of the standard electrode potential are E^(@)(Ag^(+)//Ag)=0.80 V,E^(@)(Hg_(21+)^(2+)//Hg)=0.79 VE^(@)(Cu^(+2)//Cu)=0.34V What is the sequence of deposition of metals on the cathode ?

RESONANCE ENGLISH-ELECTROCHEMISRY-CBSE Problems
  1. A copper - silver cell is set up . The copper ion concentration in it...

    Text Solution

    |

  2. (a) Corrosion is essentially an electrochemical phenomenon. Explain th...

    Text Solution

    |

  3. Calculate the cell e.m.f. and DeltaG for the cell reaction at 298K for...

    Text Solution

    |

  4. What is meant by limiting molar conductivity?

    Text Solution

    |

  5. Given that the standard electrode (E^(@)) of metals are : K^(+)//K=-...

    Text Solution

    |

  6. Express the relation among cell constant , resistance of the solution ...

    Text Solution

    |

  7. Two half cell reactions of an electrochemical cell are given below : ...

    Text Solution

    |

  8. Definie conductivity and molar conductivity for the solution of an ele...

    Text Solution

    |

  9. A copper - silver cell is set up. The copper ion concentrations is 0.1...

    Text Solution

    |

  10. Express the relation between.conductivity and molar conductivity of a ...

    Text Solution

    |

  11. The chemistry of corrosion of iron is essentially an electrochemical p...

    Text Solution

    |

  12. Determine the value of equilibrium constant and for the following ...

    Text Solution

    |

  13. What type of a battery is lead storage battery? Write the anode and c...

    Text Solution

    |

  14. (a) How many mole of mercury will be produced by electrolysing 1.0 M ...

    Text Solution

    |

  15. The molar conductivity of a 1-5 M solution of an electrolyte is found ...

    Text Solution

    |

  16. The electrical resistance of a column of 0.05 M NaOH solution of diame...

    Text Solution

    |

  17. (a) What type of a battery is the lead storage battery ? Write the ano...

    Text Solution

    |

  18. (a) Define molar conductivity of a solution and explain how molar cond...

    Text Solution

    |

  19. The conductivity of 0.20 M solution of KCl at 298 k is 0.023 S cm^(-1)...

    Text Solution

    |

  20. Calculate the emf of the following cell at 298K: Fe(s) abs(Fe^(2+)(0...

    Text Solution

    |