Home
Class 8
CHEMISTRY
(i) Describe the reaction by which iron ...

(i) Describe the reaction by which iron gets rushed.
(ii) Does copper also get rusted? A greenish deposit is seen on the surface of copper vessels.

Text Solution

Verified by Experts

(i) Rusting takes place in iron when iron comes in contact with oxygen in the presence of water vapour in the atmosphere.
Reaction:
`underset("(Iron)")(3Fe) + underset("Oxygen")(O_2)+ underset("Moisture")(2H_2O) rarr underset("(rust)")underset("Iron oxide")(Fe_3O_4) +2H_2`
Promotional Banner

Topper's Solved these Questions

  • METALS AND NON METALS

    S CHAND IIT JEE FOUNDATION|Exercise SELF ASSESSMENT SHEET|49 Videos

  • METALS AND NON METALS

    S CHAND IIT JEE FOUNDATION|Exercise QUESTION BANK-18|1 Videos

  • HYDROGEN

    S CHAND IIT JEE FOUNDATION|Exercise SELF ASSESSMENT SHEET|28 Videos

  • SYNTHETIC FIBRES AND PLASTICS

    S CHAND IIT JEE FOUNDATION|Exercise Self Assessment Sheet - 14|29 Videos

Similar Questions

Explore conceptually related problems

The greenish layer formed over the surface of copper vessels is of ______

Why Do Copper Utensils Get Greenish Deposits On Their Surface On Standing For Long Time?

When copper is exposed to atmosphere for a longer time, a green mass deposits on its surface. Discuss the chemical reaction involved.

You are given the following materials: (i) Iron nails (ii) Copper sulphate solution (iii) Barium chioride solution (iv) Copper powder (v) Ferrous sulphate crystals (vi) Quicklime Identify the type of chemical reaction taking place when: (a) Barium chloride solution is mixed with copper sulphate solution and a white precipitate is observed. (b) On heating copper powder in air in a china dish, the surface of copper powder turns black. (c) On heating green coloured ferrous sulphate crystals,reddish brown solid is left and smell of a gas having odour of burning sulphur is experienced. (d) Iron nails when left dipped in blue copper sulphate solution become brownish in colour and the blue colour of copper sulphate fades away. (e) Quick lime reacts vigorously with water releasing a large amount of heat. Write chemical equations for each one of the above reactions

You are given the following materials : {:((i), "Iron nails",, (ii), "Copper sulphate solution"),((iii), "Barium chloride solution",, (iv), "Copper powder"),((v), "Ferrous sulphate crystals",, (vi), "Quick lime"):} Identify the type of chemical reaction taking place when : (a) Barium chloride solution is mixed with copper sulphate solution and a white precipitate is observed. (b) On heating, copper powder in air in a china dish, the surface of copper powder becomes black. (c) On heating green ferrous sulphate crystals, reddish brown solid is left and a gas having smell of burning sulphur is noticed. (d) Iron nails when left dipped in blue copper sulphate solution becomes brownish in colour and blue colour of copper sulphate solution fades away.

The reaction between iron and copper sulphate solution represents which type of reaction ?

Which reducing agent is employed to get copper from the low grade copper ore ?

S CHAND IIT JEE FOUNDATION-METALS AND NON METALS-QUESTION BANK-15
  1. You are given a piece of charcoal. How will you find out whether it fo...

    Text Solution

    |

  2. One day Kavita went to a jewellers shop with her mother. Her mother ga...

    Text Solution

    |

  3. (i) Describe the reaction by which iron gets rushed. (ii) Does coppe...

    Text Solution

    |

  4. What is added to steel to make it stainless steel?

    Text Solution

    |

  5. State two necessary conditions for rusting.

    Text Solution

    |

  6. State two ways by which rusting can be prevented.

    Text Solution

    |

  7. (i) What is an alloy? (ii) An alloy usually has some property which ...

    Text Solution

    |

  8. What is the most important chemical process in the extraction of any m...

    Text Solution

    |

  9. Non-metals are poor conductors of electricity. Which allotrope of the ...

    Text Solution

    |

  10. How many valence electrons are present in following elements ? (i) s...

    Text Solution

    |

  11. How many valence electrons are present in non-metals?

    Text Solution

    |

  12. Which metals do not corrode casily?

    Text Solution

    |

  13. Name two metals which will displace hydrogen from dilute acids, and tw...

    Text Solution

    |

  14. Which gas is produced when dilute hydrochloric acid is added to a reac...

    Text Solution

    |

  15. You are given a hammer, a battery, a bulb, wires and a switch. (a) H...

    Text Solution

    |

  16. What do you mean by amphoteric oxides? Give examples along with reacti...

    Text Solution

    |

  17. Why is copper used to make hot water tanks but steel (an alloy of iron...

    Text Solution

    |

  18. State two ways by which rusting can be prevented ?

    Text Solution

    |

  19. What type of oxides are formed when non-metals combine with oxygen?

    Text Solution

    |

  20. Sameer took sulphur powder on a spatula and heated it. He collected th...

    Text Solution

    |