Home
Class 12
CHEMISTRY
In the cell Zn|Zn^(2+)(1M)||H^(+)(1M)|H(...

In the cell `Zn|Zn^(2+)(1M)||H^(+)(1M)|H_(2(g))|Pt` Zn electrode is replaced by Cu electrode. The cell potential will ____________.

A

increases

B

decreases

C

remain the same

D

become double

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    TARGET PUBLICATION|Exercise EVALUATION TEST|19 Videos
  • ELECTROCHEMISTRY

    TARGET PUBLICATION|Exercise CRITICAL THINKING|76 Videos
  • D AND F-BLOCK ELEMENT

    TARGET PUBLICATION|Exercise EVALUATION TEST|15 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    TARGET PUBLICATION|Exercise Evaluation Thinking|15 Videos

Similar Questions

Explore conceptually related problems

In the cell, Zn|Zn^(2+)"||"Cu^(2+)|Cu ________.

Cell reaction for the cell Zn|Zn^(2+)(1.0M)||Cd^(2+)(1.0M)|Cd is given by

For a standard cell Zn(s)|Zn^(2+)(1 M)||Cu^(2+)(1 M)|Cu(s) Write the electrode reaction and cell reaction. Also find the e.m.f. of cell if ? E_(Zn^(2+)|Zn)^(@)=-0.76" V", E_(Cu^(2+)|Cu)^(@)=+0.34" V" .

In the given cell representation Zn|Zn^(2+)|| Cu^(2+)|Cu , which is the negative electrode ?

If Zn^(2+)//Zn electrode is diluted 100 times, then the charge in reduction potential is

In a concentration cell, Zn|Zn^(2+) (0.1M) || Zn^(2+) (0.15M) | Zn , as the cell discharges:

Zn|Zn^(2+)(c_1M)||Zn^(2+)(c_2M)|Zn . For this cell, DeltaG would be negative , if :

TARGET PUBLICATION-ELECTROCHEMISTRY-COMPETITIVE THINKING
  1. The e.m.f of galvanic cell , with oxidation potentials of Zn = +0.76 V...

    Text Solution

    |

  2. The E(cell)^(@) value for Pt, H(2)|H^(+)||Ag^(+)|Ag is . [E(Ag//Ag^(+)...

    Text Solution

    |

  3. In the cell Zn|Zn^(2+)(1M)||H^(+)(1M)|H(2(g))|Pt Zn electrode is repla...

    Text Solution

    |

  4. The e.m.f of the following cell, Zn |ZnSO(4) (1M)||H^(+)(1M)|H(2(g))...

    Text Solution

    |

  5. For the electrochemicl cell, M|M^(+)||X^(-)|X E((M^(+)//M))^(@) = 0.44...

    Text Solution

    |

  6. At temperature of 298 K , the e.m.f. of the following electrochemical ...

    Text Solution

    |

  7. In the electrochemical cell: Zn|ZnSO(4)(0.01 M)||CuSO(4)(1.0M)|Cu ...

    Text Solution

    |

  8. Standard electrode potentials are Fe^(2+)//Fe, E^(@) = -0.44 V Fe^...

    Text Solution

    |

  9. Nernst equation for Zn((aq))^(2+)+2e^(-) to Zn((s)) is E(Zn^(2+)//Zn) ...

    Text Solution

    |

  10. Given E(Cr^(3+)//Cr)^(@)=-0.72V, and E(Fe^(2+)//Fe)^(@)=-0.42V The...

    Text Solution

    |

  11. The cell , Zn | Zn^(2+) (1M) || Cu^(2+) (1M) Cu (E("cell")^@ = 1. 10 V...

    Text Solution

    |

  12. What will be the emf for the given cell ? Pt|H(2)(g,P(1))|H^(+)(aq)|...

    Text Solution

    |

  13. The reduction potential of hydrogen half cell will be negative if :

    Text Solution

    |

  14. The pressure of H(2) required to make the potential of H(2^(-)) electr...

    Text Solution

    |

  15. Consider the following cell reaction. 2Fe(s)+O(2)(g)+4H^(+)(aq)rarr2...

    Text Solution

    |

  16. The Gibbs energy for the decomposition of Al(2)O(3) at 500^(@)C is as ...

    Text Solution

    |

  17. What is the potential for the cell Cr|Cr^(3+)(0.1M)||Fe^(2+)(0.01M)|...

    Text Solution

    |

  18. For a spontaneous reaction the DeltaG, equilibrium constant (K) and E(...

    Text Solution

    |

  19. What is the free energy change per mole of Cu(II) ion formed in a cell...

    Text Solution

    |

  20. If the E(cell)^(@) for a given reaction has a positive value, then whi...

    Text Solution

    |