Home
Class 12
CHEMISTRY
Zine can be coated on iron to produce ga...

Zine can be coated on iron to produce galvanize3d iron but the reverse is not possible it is because

A

Zinc has lower negative electrode potential

B

Zinc has higher negative electrode potential

C

Zinc is lighter than iron

D

Zinc has lower melting point than iron.

Text Solution

Verified by Experts

The correct Answer is:
B
Zn have a higher (-ve) electrode potential that reactive than Fe. It is coated on iron provide resistance against rusting such a process is galvanisation. But in reverse, that is Fe cannot be Zn, as corrosion will occur. In above, Zn dissolved in its solution.
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    PHYSICS WALLAH|Exercise LEVEL-2|60 Videos

  • COORDINATION COMPOUNDS

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |8 Videos

  • ENVIRONMENTAL CHEMISTRY

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions |4 Videos

Similar Questions

Explore conceptually related problems

Galvanized iron sheets are coated with

Zinc is coated over ion iron to prevent rusting of iron because :

What is deposited on iron in the process of galvanization?

PHYSICS WALLAH-ELECTROCHEMISTRY-NEET PAST 5 YEARS QUESTIONS
  1. The zinc/silver oxide cell is used in electric current reaction is as ...

    Text Solution

    |

  2. During the electrolysis of molten sodium chloride, the time required t...

    Text Solution

    |

  3. Zine can be coated on iron to produce galvanize3d iron but the reverse...

    Text Solution

    |

  4. The number of electrons delivered at the cathode during electrolysis b...

    Text Solution

    |

  5. If the E^(@) for a given reaction has a negative value, then which of ...

    Text Solution

    |

  6. The molar conductivity of a 0.5 mol dm^(-1) solution with electrolytic...

    Text Solution

    |

  7. The pressure of H(2) required to make the potential of H(2)-electrode ...

    Text Solution

    |

  8. On elctrolysis of dil sulphuric acid using Platinum (Pt) electrode the...

    Text Solution

    |

  9. The number of Faraday.s (F) required to produce 20 g of calcium from C...

    Text Solution

    |

  10. Identify the reaction from following having top position is EMF series...

    Text Solution

    |

  11. In a typical fuel cell, the reactants (R) and product (P) are:

    Text Solution

    |

  12. For a cell involving one electron E(cell)^(0)=0.59V and 298K, the equi...

    Text Solution

    |

  13. For the cell reaction 2Fe^(2+)(aq) + 2I^(-)(aq) to 2Fe^(2+)(aq) + I(...

    Text Solution

    |

  14. Consider the change in oxidation state of Bromine corresponding to dif...

    Text Solution

    |

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

    Text Solution

    |

  16. Given that wedge(m)^(@) = 133.45 cm^(2) mol^(-1) (AgNO(3)) wedge(m)^(@...

    Text Solution

    |

  17. The zinc/silver oxide cell is used in electric current reaction is as ...

    Text Solution

    |

  18. During the electrolysis of molten sodium chloride, the time required t...

    Text Solution

    |

  19. Zinc can be coated on iron to produce galvanometer is reverse is not p...

    Text Solution

    |

  20. The number of electrons delivered at the cathode during electrolysis b...

    Text Solution

    |