Home
Class 9
CHEMISTRY
Corrosion of metals can be prevented ...

Corrosion of metals can be prevented by

A

coating the metal surface with a paint

B

applying a film of oil and grease on the surface of the metal

C

electroplating the metal with non -corroding metals

D

covering the surface of the metal with another metal which is more electropositive

Text Solution

Verified by Experts

The correct Answer is:
(A) , (B) , (C ) , AND (D)
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise CHALLENGING EXERCISE|8 Videos

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise OLYMPIAD AND NTSE LEVEL EXERCISES |10 Videos

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise MANDATORY EXERCISE (Set - IV)|9 Videos

  • CHEMICAL REACTIONS

    CENGAGE CHEMISTRY|Exercise OLYMPIAD AND NTSE LEVEL EXCERCISES|10 Videos

  • EQUIVALENT MASS

    CENGAGE CHEMISTRY|Exercise OLYMPIAD AND NTSE LEVEL EXERCISES|10 Videos

Similar Questions

Explore conceptually related problems

Mention any one method by which corrosion of metals can be prevented.

Floods can be prevented by

Corrosion of metals can be stopped by detaching the air from metals.

Corrosion of metals can be stopped by detaching the air from metals. True/False

Metals can be prevented from rusting by .

Corrosion of metals involves :

Rickets can be prevented by taking

Soil erosion can be prevented by

CENGAGE CHEMISTRY-ELECTROCHEMISTRY -MULTIPLE CHOICE QUESTIONS WITH ONE OR MORE THAN ONE CORRECT ANSWER
  1. By passage of 1 F electricity

    Text Solution

    |

  2. Which of the following is /are functions (s) of salt bridge ?

    Text Solution

    |

  3. For the cell reaction Cu(s)+Cl(2)(aq)toCu^(2+)(aq)+2Cl-(aq) , cell no...

    Text Solution

    |

  4. Given E(Ag^(+)//Cu)^(@)=0.80V,E(Hg^(2+)//Mg)^(@)=0.79V E(Cu^(2+)//...

    Text Solution

    |

  5. Corrosion of metals can be prevented by

    Text Solution

    |

  6. E(1),E(2)andE(3) are the emf of the following three cells (i) Zn...

    Text Solution

    |

  7. If .E(Sn^(+4)//Sn^(+2))^(@)=+0.15andE(Au^(3+)//Au)^(@)=1.5v Then for t...

    Text Solution

    |

  8. The E(M^(3+)//M^(2+))^(@) value of cr , Mn Fe and Co are - 0.41, +1.57...

    Text Solution

    |

  9. If Cu^(2+)+2etoCu, E^(@)=0.337v,Cu^(2+)+e to Cu, E^(@)=0.153v the...

    Text Solution

    |

  10. Given Pb^(2+)//Pb=-0.12v,Zn^(2+)//Zn=-0.763v find emf of the followin...

    Text Solution

    |

  11. E^(@) for Mg^(2+)//Mg=-2.37v,Zn^(2+)//Zn=-0.76vandFe^(2+)//Fe=-0.44v ...

    Text Solution

    |

  12. Hydrogen gas in not liberated when the following metal is added to d...

    Text Solution

    |

  13. On the basis of the following E^(@) values the strong - est oxidising...

    Text Solution

    |

  14. Zn(s)+Cl(2)(1 atm ) to Zn^(2+)+2Cl^(-),E("Cell")^(@)of the cell is 2.1...

    Text Solution

    |

  15. The standard reduction potential of hydrogen electrode at 1 M conc...

    Text Solution

    |

  16. Alkali metals have high oxidation potential hence they behave as

    Text Solution

    |

  17. When iron is rusted , it is

    Text Solution

    |

  18. Chemical formula of rust is

    Text Solution

    |

  19. The rusting of iron is catalysed by

    Text Solution

    |

  20. Which one of the following metal is used in galvanisation ?

    Text Solution

    |