Home
Class 12
CHEMISTRY
The given redox reactions occur spontane...

The given redox reactions occur spontaneously Arrange Ag,Zn and Cu according to their increasing standard reduction potentials .

Text Solution

Verified by Experts

In the first reaction , `Ag^(+)` is reduced by Cu . So the standard reduction potential of Ag is larger than that of Cu . In the second reaction, `Cu^(2)` is reduced by Zn , So the standard reduction potential of Cu is larger than that of Zn Hence, the order of increasing standard reduction potential will be `E_(Zn^(2+)|zn)^(@) lt E_(Cu^(2+)|Cu)^(@) lt E_(Ag^(+)|Ag)^(@)`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise SOLVED WBCHSE SCANNER (2014)|1 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise SOLVED WBCHSE SCANNER (2015)|6 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise QUESTION - ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE )|19 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

Each of the following redox reaction occurs spontaneously. Mg(s)+Zn^(2+)(aq)rarrZn(s)+Mg^(2+)(aq) Cu(s) + 2Ag^+(aq) rarr 2Ag(s) + Cu^(2+)(aq) Arrange, with explanation, Mg, Zn, Cu and Ag in order of their decreasing standard reduction potentials.

Each of the following redox reaction occurs spontaneously. Zn(s)+Cu^(2+)(aq)rarrZn^(2+)(aq)+Cu(s) Arrange with explanation Zn,Cu in order of their decreasing standard reduction potential.

Each of the following redox reaction occurs spontaneously. Cu(s)+2Ag^(+)(aq)rarrCu^(2+)(aq)+2Ag(s) Arrange with explanation Ag,Cu in order of their decreasing standard reduction potential.

The order of chemical reactivity of three elements is A gt B gt C . Arrange these elements in the ascending order of their standard reduction potentials.

Find the strongest reducing agent among the following redox couples considering their standard reduction potentials: Zn^(2+)|Zn=-0.768V, Cr^(+3)|Cr=-0.74V, 2H^(+)|H_(2)(g), Pt=0.00V, Fe^(3+)|Fe^(2+),Pt=0.77V

Standard reduction potential of the Ag^(+)|Ag electrode at 298 K is 0.799 V. Given that for AgI, K_(sp)=8.7xx10^(-17) , evaluate the potential of the Ag^(+)|Ag electrode in a standard solution of AgI . Also calculate the standard reduction potential of I^(-)|Agl|Ag

Zn - granules are added in excess to 500 mL of 1.0 M nicke nitrate solution at 25^(@)C until the equilibrium is reached. If standard reduction potential of Zn^(2+)|Zn and Ni^(2+)|Ni are -0.75V and -0.24V , respectively, find out the concentration of Ni^(2+) in solution at equilibrium.

Name the electrode at which the following reduction reaction occurs. What is the standard reduction potential of this electrode at 25^(@)C ? 2H_(3)O^(+)"(aq, 1M)"+2e rarr H_(2)"(g, 1 atm)"+2H_(2)O(l)

Which one of the following reactions will be spontaneous if the standard reduction potential of M^(+)|M and X|X^(-) electrodes of the galvanic cell. M|M^(+)||X^(-)|X is +0.44V and +0.33V respectively? (i) M+XrarrM^(+)+X^(-), (ii) M^(+)+X^(-)rarr M+X.

4.5 mM Cr_(2)O_(7)^(2-) and 15mM Cr^(3+) is mixed to produce a solution of pH = 2.0. What will be the reduction potential of the half - cell? Given : For the change Cr_(2)O_(7)^(2-) rarr Cr^(3+) , the standard reduction potential is 1.33V .

CHHAYA PUBLICATION-ELECTROCHEMISTRY-QUESTION - ANSWER ZONE FOR BOARD EXAMINATION (SHORT ANSWER TYPE )
  1. I(2) and Br(2) are added to a solution containing I^(-) and Br^(-) ion...

    Text Solution

    |

  2. Iron can displace Cu from CuSO(4) solution, but Ag can not. Explain.

    Text Solution

    |

  3. The given redox reactions occur spontaneously Arrange Ag,Zn and Cu acc...

    Text Solution

    |

  4. Predict whether reaction will occur between the pairs given below : ...

    Text Solution

    |

  5. Predict whether reaction will occur between the pairs given below : ...

    Text Solution

    |

  6. Predict whether reaction will occur between the pairs given below : ...

    Text Solution

    |

  7. Can we stir CuSO(4) solution by a Ni saptula ? Give reasons for your a...

    Text Solution

    |

  8. Why does . Mercury cell provide constant voltage ?

    Text Solution

    |

  9. Which among the following vessels is used to store CuSO(4) solution ...

    Text Solution

    |

  10. Which among the following vessels is used to store CuSO(4) solution ...

    Text Solution

    |

  11. When aqueous CuSO(4) solution is elestrolysed in presence of two plant...

    Text Solution

    |

  12. Will Sn reduce Sn^(4)+ to Sn^(2+) ? [ Given E(Sn^(2+)|Sn)^(@)=0.14V,...

    Text Solution

    |

  13. Identify X^(-) In the following spontaneous reactions Cl(2)+2X^(-)+X(2...

    Text Solution

    |

  14. Of the elements Zn , Mg Cu and Ag , which are able to produce H(2) ga...

    Text Solution

    |

  15. Between Fe and Mn which can be converted to +2 oxidation state easily ...

    Text Solution

    |

  16. Show , the charge of any ion is simple integral multiple of F/N

    Text Solution

    |

  17. Explain why the stability of Cu^(+) io in aqueous solution is lower C...

    Text Solution

    |

  18. How can the reduction potential of M^(n+)|M electrode be increased at...

    Text Solution

    |

  19. Show that 1 F of electricity is required is required for liberating 1...

    Text Solution

    |

  20. During electrolysis of aqueoussolution of NaCl in presence of platinu...

    Text Solution

    |