Home
Class 12
CHEMISTRY
In moist air copper corrodes to produce...

In moist air copper corrodes to produce a green layer on the surface. What is that layer ?

Text Solution

Verified by Experts

Copper, in the presence of moisture, oxygen and carbon dioxide of atmosphere, is converted into a basic carbonate, called malachite of composition, `CuCO_(3).Cu(OH)_(2)`. This basic carbonate is deposited as green layer on its surface.
Promotional Banner

Topper's Solved these Questions

  • METALLURGY

    AAKASH SERIES|Exercise EXERCISE - 7.1.1|1 Videos

  • METALLURGY

    AAKASH SERIES|Exercise EXERCISE - 7.1.4|5 Videos

  • METALLURGY

    AAKASH SERIES|Exercise PRACTICE SHEET-5 (Integer answer type Questions)|6 Videos

  • IONIC EQUILLIBRIUM

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (PRACTICE SHEET ( ADVANCED))|11 Videos

  • NITROGEN CONTAINING COMPOUNDS

    AAKASH SERIES|Exercise Conversions|18 Videos

Similar Questions

Explore conceptually related problems

What are layers?

Why some fruits get a brown layer on the surface, when cut?

What damages ozone layer ?

What are Broilers and layers?

The lungs are surrounded by two protective layers. What do you call them ?

What is the role of air in the growth of green plants ?

The surface tension of the soap water solution is 1/ (10 pi) N/m . The free energy of the surface layer of a soap bubble of diameter 5 mm will be

AAKASH SERIES-METALLURGY-PROBLEMS
  1. In moist air copper corrodes to produce a green layer on the surface....

    Text Solution

    |

  2. Why is the reduction of a metal oxide if the metal formed is in liquid...

    Text Solution

    |

  3. The Value of DeltaG^(@) for the formation of Cr(2)O(3) is -"540KJ mol...

    Text Solution

    |

  4. Reduction of metal sulphides directly with carbon is not possible. Why...

    Text Solution

    |

  5. Eventhough reduction of magnesia with aluminium is thermodynamically f...

    Text Solution

    |

  6. Aluminium containing alumina as impurity can be refined by poling or n...

    Text Solution

    |

  7. The choice of a reducing agent in the extraction of a particular case...

    Text Solution

    |

  8. Hydrogen is a common reductant of organic chemicals, but it is not ...

    Text Solution

    |

  9. Out of coke and carbonmonoxide, which is a better reducing agent for i...

    Text Solution

    |

  10. Both coke and lime stone are used in smelting of iron ore. Why?

    Text Solution

    |

  11. In the Auto oxidation taking place in Bessemer converter during the ex...

    Text Solution

    |

  12. During the smelting of roasted copper pyrites in blast furnace, why Cu...

    Text Solution

    |

  13. Out of C and CO, which is a better reducing agent for ZnO ?

    Text Solution

    |

  14. How is a mixture of oxides of Aland Fe separated ?

    Text Solution

    |

  15. Aluminium vessels should not be washed with materials containing washi...

    Text Solution

    |

  16. Graphite rods are frequently replaced in Hall-Heroult's process of ex...

    Text Solution

    |

  17. Write the composition of brass and german silver ?

    Text Solution

    |