Home
Class 12
CHEMISTRY
The chemistry of corrosion of iron is es...

The chemistry of corrosion of iron is essentially an electrochemical phenomenon. Explain the reactio:rs occurring during the corrosion of iron in the atmosphere.

Text Solution

Verified by Experts

The chemistry of corrosion of iron is essentially an electrochemical phenomenon. This is one of the simplest methods to prevent rusting of iron. In this method of barrier is placed between ion and atmospheric air. Because of scratches, both zic and iron get exposed to oxidation but zinc undergoes in preference to iron.
`Fe^(2+)+2e^(-)hArrFe(s):E^(@)=-0.44V`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISRY

    RESONANCE|Exercise Advanced Level Problems|88 Videos
  • ELECTROCHEMISRY

    RESONANCE|Exercise Part 2|23 Videos
  • ELECTRO CHEMISTRY

    RESONANCE|Exercise PHYSICAL CHEMITRY (ELECTROCHEMISTRY)|53 Videos
  • EQUIVALENT CONCEPT & TITRATIONS

    RESONANCE|Exercise Part -IV|22 Videos

Similar Questions

Explore conceptually related problems

Corrosion is essentially an electrochemical phenomenon. Explain the reactions occurring during corrosion of iron kept in an open atmosphere.

In corrosion of iron

Corrosion is essentially an electrochemical phenomenon. Explain the reactions occurring during corrosion of iron kept in an open atmosphere. (b) Calculate the equilibrium constant for the equilibrium reaction Fe_((s)) + Cd_((aq))^(2+) hArr Fe_((aq))^(2+) + Cd_((s)) (Given : E_(Cd^(2+)|Cd)^(@) = -0.40 V , E_(Fe^(2+)|Fe)^(@) = -0.44V ).

The corrosion of iron is called _____

The corrosion of iron object is favoured by

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

    Text Solution

    |

  2. Corrosion is essentially an electrochemical phenomenon. Explain the re...

    Text Solution

    |

  3. Calculate the cell emf and triangle(r)G^(@) for the cell reactin at 25...

    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. Define conductivity and molar conductivity for the solution of an ele...

    Text Solution

    |

  9. Write the anode and cathode reactions and the overall reaction occuri...

    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 values of equilibrium constant (K(c)) and DeltaG^(@) for...

    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 " mol " L^(-1) NaOH solu...

    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 0.0248 S cm^(-1...

    Text Solution

    |

  20. Calculate the emf of the following cell at 298K: Fe(s) abs(Fe^(2+)(0.0...

    Text Solution

    |