Home
Class 10
CHEMISTRY
(a) Define corrosion, what is the nature...

(a) Define corrosion, what is the nature given to corrosion of iron ?
(b) Name the colour of coating formed on silver and copper when exposed to air.
(c ) List two damages caused by corrosion and suggest, how these can be prevented.

Text Solution

Verified by Experts

(a) For definition of corrosion. Corrosion of iron is known as rusting.
(b) Coating deposited on the surface of silver metal is of silver sulphide `(Ag_(2)S)`. It is black in colour. The coating deposited on copper surface is of basic copper carbonate `Cu(OH)_(2)CuCO_(3)`. It is green in colour.
Promotional Banner

Topper's Solved these Questions

  • METALS AND NON-METALS

    DINESH PUBLICATION|Exercise HOTS|7 Videos

  • METALS AND NON-METALS

    DINESH PUBLICATION|Exercise MCQ|64 Videos

  • METALS AND NON-METALS

    DINESH PUBLICATION|Exercise Short Answer Questions|45 Videos

  • CHEMICAL REACTIONS AND EQUATIONS

    DINESH PUBLICATION|Exercise Multiple Choice Questions|18 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS

    DINESH PUBLICATION|Exercise PBQs|28 Videos

Similar Questions

Explore conceptually related problems

(a) Explain the term "corrosion" with an example. Wriite a chemical equation to show the peocess of correcsion of iron. (b) What special name is given to the corrosion of iron ? (c ) What type of chemical reaction is involved in the corrosion of iron ? (d) Name any three objects (or structures) which are gradually damaged by the corrosion of iron and steel.

DINESH PUBLICATION-METALS AND NON-METALS-Long Answer Questions
  1. How will your demonstrate that the ionic compounds do not conduct elec...

    Text Solution

    |

  2. With a suitable activity show that sulphur burns in air to form a comp...

    Text Solution

    |

  3. (a) Define corrosion, what is the nature given to corrosion of iron ? ...

    Text Solution

    |

  4. Give reasons for the following : (i) Zinc can displace copper from c...

    Text Solution

    |

  5. (a) Distinguish between 'roasting' and 'calcination'. Which of the two...

    Text Solution

    |

  6. Give an example of a metal which (i) is a liquid at room temperature...

    Text Solution

    |

  7. (a) Write the balanced chemical equations for the extraction of copper...

    Text Solution

    |

  8. (a) Write method will you use to reduce the following ? Explain by giv...

    Text Solution

    |

  9. (a) Why are ionic compounds usually hard crystalline solids ? (b) Gi...

    Text Solution

    |

  10. (a) Write the balanced chemical equations for the extraction of copper...

    Text Solution

    |

  11. (A) Name the components of the alloy steel and stainless steel. (b) ...

    Text Solution

    |

  12. A metal M found in nature as sulphide ore (M(2)S) is one of the good c...

    Text Solution

    |

  13. State the reason why (i) carbon is not used to reduce the oxides of...

    Text Solution

    |

  14. (a) Write the chemical reactions taking place when : (i) Manganese ...

    Text Solution

    |

  15. (a) White the steps involved in the extraction of pure metals in th...

    Text Solution

    |

  16. A metal 'X' acquires a green colour coating on its surface on exposure...

    Text Solution

    |

  17. Give reasons for the following : Ionic compounds have high melting ...

    Text Solution

    |

  18. (a) Why are ionic compouds usually hard crystalline solids ? (b) G...

    Text Solution

    |

  19. (A) Name the components of the alloy steel and stainless steel. (b) ...

    Text Solution

    |

  20. State the reason why (i) carbon is not used to reduce the oxides of...

    Text Solution

    |