Home
Class 12
CHEMISTRY
Adding powdered Pb and Fe to a solution ...

Adding powdered Pb and Fe to a solution containing 1.0 M each of `Pb^(2+)` and `Fe^(2+)` ions would result into the formation of:

A

more Fe and `Pb^(2+)` are formed

B

more Pb & `Fe^(2+)` are formed

C

concentration of both `Pb^(2+)`and `Fe^(2+)` increases

D

no net change

Text Solution

Verified by Experts

The correct Answer is:
B

Fe displaces `Pb^(2+)` ion as `E_("red")^(0) Pb gt E_("red")^(0)Fe`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    MARVEL PUBLICATION|Exercise Previous years Entrance Exams MCQ|55 Videos
  • ELECTROCHEMISTRY

    MARVEL PUBLICATION|Exercise Test your Grasp|50 Videos
  • D AND F BLOCK ELEMENTS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|60 Videos
  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MARVEL PUBLICATION|Exercise Test Your Grasp|30 Videos

Similar Questions

Explore conceptually related problems

Adding powdered Cu and Zn to a solution containing 1.0 M is each of Cu^(​2+) and Zn^(​2+) ions would result into the formation of :-

An iron rod is immersed in a solution containing 1.0 M NiSO_(4) and 1.0 M ZnSO_(4) Predict giving reasons which of the following reactions is likely to proceed ? (i) Fe reduces Zn^(2+) ions, (ii) Iron reduces Ni^(2+) ions. Given : E_(Zn^(2+)| Zn )^(0) = -0.76 volt and , E_(Fe^(2+)|Fe)^(0) = -0.44 volt and E_(Ni^(2+)|Ni)^(0) = -0.25 V

Assertion (A): A solution contains 0.1M each of pB^(2+), Zn^(2+),Ni^(2+) , ions. If H_(2)S is passed into this solution at 25^(@)C . Pb^(2+), Ni^(2+), Zn^(2+) will get precpitated simultanously. Reason (R): Pb^(2+) and Zn^(2+) will get precipitated if the solution contains 0.1M HCI . [K_(1) H_(2)S = 10^(-7), K_(2)H_(2)S = 10^(-14), K_(sp) PbS =3xx 10^(-29) K_(sp) NiS = 3 xx 10^(-19). K_(sp) ZnS = 10^(-25)]

An aq. Solution containing Hg^(2+),Pb^(2+) and Cd^(2+) ions is mixed with dil. HCl . Which will be precipitated

Statement-1: No yellow precipitate is formed when an excess of a more concentrated (6M) solution of KI is added to a solution containing Pb^(2+) ions. Statement-2: Solution of [PbI_(4)]^(2-) on dilution with water produces yellow precipitate of PbI_(2) .

An aqueous solution containing Hg^(2+),Hg_(2)^(2+),Pb^(2+) and Cd^(2+) ions will give precipitate of _______ with dil. HCl

An aqueous solution containing 0.1M Fe^(3+) and 0.01 M Fe^(2+) was titrated with a concentrated solution of NaOH at 30^(@)C , so that changes in volumes were negligible. Assuming that the new species formed during titration are Fe(OH)_(3) and Fe(OH)_(2) only. Given E^(c-)._(Fe^(3+)|Fe^(2+))=0.80V, K_(spFe(OH)_(3))=10^(-37), and K_(sp Fe(OH)_(2))=10^(-19) The redox potential of Fe^(3+)|Fe^(2+) electrode at pH=6 is

MARVEL PUBLICATION-ELECTROCHEMISTRY-Test your Grasp
  1. Adding powdered Pb and Fe to a solution containing 1.0 M each of Pb^(2...

    Text Solution

    |

  2. An electric current is passed through an aqueous solution of the follo...

    Text Solution

    |

  3. Electrolysis involves oxidation and reduction respectively at .

    Text Solution

    |

  4. The metal which can not displace hydrogen from dil. H(2)SO(4) solution...

    Text Solution

    |

  5. The amount of electricity required to deposit one gram atom of Mg from...

    Text Solution

    |

  6. During electrolysis electrons flow from

    Text Solution

    |

  7. In a solution of CuSO(4) how much time will be required to preciitate ...

    Text Solution

    |

  8. 0.1 ampere current is passed for 10 seconds through Cu and Ag. The met...

    Text Solution

    |

  9. How many electrons are there in one coulomb of electricity?

    Text Solution

    |

  10. The emf of cell is 1.3 Volt. The positive electrode has potential of 0...

    Text Solution

    |

  11. How many Faradays are required to liberate one mole of O(2) gas at N.T...

    Text Solution

    |

  12. A silver cup is plated with silver by passing 965 coulombs of electric...

    Text Solution

    |

  13. A, B,C and D are four elements with E(oxd)^(0) as +2.82V, +2.71V, +1.6...

    Text Solution

    |

  14. During rusting of iron it gets

    Text Solution

    |

  15. The electrode potential of a silver electrode dipped in 0.1 M AgNO(3) ...

    Text Solution

    |

  16. A certain current liberated 0.504 g of hydrogen in 2 hours. How many g...

    Text Solution

    |

  17. The rusting of iron is catalysed by which of the following ?

    Text Solution

    |

  18. In a cell containing zinc electrode and hydrogen electrode,If the redu...

    Text Solution

    |

  19. E^(@) of Mg^(2+) || Mg, Zn^(2+) || Zn, and Fe^(2+)||Fe are -2.37V, -0....

    Text Solution

    |

  20. The reaction M^(2)+2e^(-) to M has standard potential of -0.66V . This...

    Text Solution

    |

  21. Rgw atomic weight of Al is 27. When a current of 5F is passed through ...

    Text Solution

    |