Home
Class 12
CHEMISTRY
Work out the following using chemical eq...

Work out the following using chemical equation.
In moist air, copper corrodes to produce a green layer on the surface?

Text Solution

Verified by Experts

In the presence of moist air, a thin film of green basic copper carbonate is formed on its surface and therefore, it corrodes.
`2Cu + O_2 + H_2O + CO_2to underset("basic copper cabonate (green)")(CuCO_3.Cu(OH)_2)`
Promotional Banner

Topper's Solved these Questions

  • D AND F-BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise NCERT FILE (INTEXT QUESTION)|10 Videos

  • D AND F-BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise NCERT FILE (TEXTBOOK EXERCISE)|38 Videos

  • D AND F-BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise PRACTICE PROBLEM|33 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|13 Videos

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|20 Videos

Similar Questions

Explore conceptually related problems

In moist air, copper corrodes to produce a green layer on the surface. Give reason.

Work out the following using chemical equations: Chlorination of calcium hydroxide produces bleaching powder'.

STATEMENT-1 : In moist air, copper corrodes to produce a green layer on the surface. and STATEMENT-2 : Oxide layer is formed in presence of moist air.

Work out the surface area of following shapes

Work out the surface area of following shapes

Work out the surface area of following shapes

Work out the surface area of following shapes

MODERN PUBLICATION-D AND F-BLOCK ELEMENTS-CONCEPTUAL QUESTION
  1. (a) Write a metal oxide compound for manganese in each of the followin...

    Text Solution

    |

  2. How many water molecules are involved in coordination in CuSO4 .5H2O ...

    Text Solution

    |

  3. Work out the following using chemical equation. In moist air, copper...

    Text Solution

    |

  4. What is the most common form of chromium in basic solution ? What ion ...

    Text Solution

    |

  5. Explain how the colour of K2Cr2O7 solution depends on pH of the solut...

    Text Solution

    |

  6. Name the oxometal anions of the first series of the transition metals ...

    Text Solution

    |

  7. Complete the following reactions : (i) Cr(2)O(7)^(2-)+Sn^(2+)+H^(+) ...

    Text Solution

    |

  8. Sodium chloride when heated with conc. H(2)SO(4) and solid potassium d...

    Text Solution

    |

  9. Give reasons for following in one or two sentences: CrO3 is an acid ...

    Text Solution

    |

  10. Complete the following chemical equations : (i) KMnO4 overset(513K...

    Text Solution

    |

  11. Why KMnO(4) is used in cleaning surgical instruments in hospitals ?

    Text Solution

    |

  12. Identify the oxoanion of chromium which is stable in acidic medium

    Text Solution

    |

  13. In the transition series, starting from lanthanum La(Z=57), the next e...

    Text Solution

    |

  14. One among the lanthanoides, Ce(III), can be easily oxidized to Ce(IV) ...

    Text Solution

    |

  15. Why do Zr and Hf exhibit similar properties ?

    Text Solution

    |

  16. What are the different oxidation states exhibited by the lanthanoids?

    Text Solution

    |

  17. What is the basic difference between the electronic configuration of t...

    Text Solution

    |

  18. The trivalent ion having size in lanthanide series is

    Text Solution

    |

  19. Give one example each of lanthanoid ion having +2, +3 and +4 oxidation...

    Text Solution

    |

  20. Can lanthanum ion (Z = 57) exist in +4 oxidation state ? Justify your ...

    Text Solution

    |