Home
Class 12
CHEMISTRY
Based on the reactions and data below, w...

Based on the reactions and data below, which reaction is least spontaneous?

A

`2H^(2+) + 2e^(-) rightarrow Hg^(2+_(2)) + I_(2)`

B

`H_(2) + 2OH^(-) + I_(2) rightarrow 2H_(2)O + 2I^(-)`

C

`2H_(2)O + Hg_(2)^(2+) rightarrow H_(2) + 2OH^(-) + 2Hg^(2+)`

D

`H_(2) + 2OH^(-) + 2Hg^(2+) rightarrow 2H_(2)O + Hg_(2)^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Latimer Diagram, concentration cells|117 Videos

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Batteries|10 Videos

  • ELECTROCHEMISTY

    GRB PUBLICATION|Exercise Subjective type|39 Videos

  • D-BLOCK ELEMENTS

    GRB PUBLICATION|Exercise Subjective Type|18 Videos

  • ENVIRONMENTAL CHEMISTRY

    GRB PUBLICATION|Exercise Straight objective type|40 Videos

Similar Questions

Explore conceptually related problems

A reactions is spontaneous if

A reaction occurs spontaneously if

GRB PUBLICATION-ELECTROCHEMISTY-Galvanic Cell and Salt Bridge
  1. Consider the following reactions: X(NO(3)(2) + Y rightarrow X + Y(NO...

    Text Solution

    |

  2. When connected to a Standard Hydrogen Electrode (SHE) electrons flow f...

    Text Solution

    |

  3. Given these standards reduction potentials, what is the free energy ch...

    Text Solution

    |

  4. Given the standard reduction potentials, which statement is correct? ...

    Text Solution

    |

  5. In a galvanic cell in which the following spontaneous reaction takes p...

    Text Solution

    |

  6. For a galvanic cell involving the half-reaction at standard conditions...

    Text Solution

    |

  7. According to the half-reaction table, Sn^(2+) + 2e^(-) rightarrow Sn...

    Text Solution

    |

  8. The reduction potentials for the +2 cations, e.g. A^(2+) + 2e^(-) ri...

    Text Solution

    |

  9. E^(@) = 0.93V for the reactions: Fe(s) + 2M^(+)(aq) rightarrow Fe^(2...

    Text Solution

    |

  10. In the galvanic cell shown below, which arrow indicates the spontaneou...

    Text Solution

    |

  11. What is the standard cell potential for the voltaic cell? Cr || Cr^(...

    Text Solution

    |

  12. What is the E^(@) value for the voltaic cell constructed from the half...

    Text Solution

    |

  13. Based on the reactions and data below, which reaction is least spontan...

    Text Solution

    |

  14. Use the standard reduction potentials: Sn^(2+)(aq) + 2e^(-) rightarr...

    Text Solution

    |

  15. What is the standard cell potential for the reaction, 2Cr(s) + 3Sn^(...

    Text Solution

    |

  16. Which is the weakest oxidizing agent in a 1 M aqueous solution?

    Text Solution

    |

  17. Consider the cell potentials E(Mg^(2+)|Mg)^(0)=-2.37V and E(Fe^(3+)|Fe...

    Text Solution

    |

  18. Use the E^(@) values in the table above to the determining which of th...

    Text Solution

    |

  19. According to the equations and data in the table above, which species ...

    Text Solution

    |

  20. According to the standard reduction potentials above, cathodic protect...

    Text Solution

    |