Home
Class 8
CHEMISTRY
Why do statues and vessels made up of co...

Why do statues and vessels made up of copper become dull green after certain time ?

Promotional Banner

Topper's Solved these Questions

  • ELECTRICAL CONDUCTIVITY OF LIQUIDS

    VGS PUBLICATION-BRILLIANT|Exercise EXERCISE|95 Videos

  • SYNTHETIC FIBERES AND PLASTICS

    VGS PUBLICATION-BRILLIANT|Exercise EXERCISE|221 Videos

Similar Questions

Explore conceptually related problems

Why are the inner sides of vessels made up of brass and copper coated ?

Why do silver objects and jewellery become black after some time ?

Gold jewellery does not become dull. Why ?

Why do curd and sour substances not be kept in copper vessels ?

Why do subcutaneous blood vessels bulge on the side away form the heart when the hand is tied?

Amount of gas adsorbed per gram of adsorbent increases with pressure but after certain limit is reached, adsorption becomes constant. It is when

Why are bells made up of metals instead of wood?

An ideal gas is pumped into a rigid vessel whose walls are diathermic. In a certain time interval the pressure of the gas in the container becomes 4 times, the internal energy will ... in the interval. Best suitable option for the blank space is.

VGS PUBLICATION-BRILLIANT-METALS AND NON-METALS-EXERCISE
  1. What happens when magnesium metal is burnt in air?

    Text Solution

    |

  2. Why do silver objects and jewellery become black after some time ?

    Text Solution

    |

  3. Why do statues and vessels made up of copper become dull green after c...

    Text Solution

    |

  4. Which apparatus is required to test hydrogen gas?

    Text Solution

    |

  5. How do non-metals generally react with acids?

    Text Solution

    |

  6. Which of the following is metal displacement reaction

    Text Solution

    |

  7. Which metal has highest ductility?

    Text Solution

    |

  8. Sodium and potassium are stored in kerosene. Why?

    Text Solution

    |

  9. Are all metals hard ?

    Text Solution

    |

  10. Which non-metal has lustrous surface ?

    Text Solution

    |

  11. Name one non-metal which is quite hard.

    Text Solution

    |

  12. Give reasons for the following : Immersion rods for heating liquids ar...

    Text Solution

    |

  13. Give reasons for the following : Immersion rods for heating liquids ar...

    Text Solution

    |

  14. Copper cannot displace zinc from its salt solution. Give reason.

    Text Solution

    |

  15. Why are aluminium foils used to wrap food items ?

    Text Solution

    |

  16. what are different types of food sources.?

    Text Solution

    |

  17. The doctor reported iron deficiency in my body. Where is iron in my bo...

    Text Solution

    |

  18. I heard that magnesium is found in plants. In what form is it found in...

    Text Solution

    |

  19. Gold jewellery does not become dull. Why ?

    Text Solution

    |

  20. Predict the reason behind gold and platinum jewellery does not become ...

    Text Solution

    |