Home
Class 12
CHEMISTRY
Iron is rendered passive by treatment wi...

Iron is rendered passive by treatment with

A

`H_2SO_4` is a strong oxidising agent and it reacts with `KMnO_4` during titration

B

`H_3PO_4`

C

`HCl`

D

conc. `HNO_3`

Text Solution

Verified by Experts

The correct Answer is:
d
Iron on reaction with conc. `HNO_3` is covered with oxide film `(Fe_2O_3)` and is rendered passive.
Promotional Banner

Topper's Solved these Questions

  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY|Exercise Exercises Assertion Reasoning|20 Videos

  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY|Exercise Exercises Integer|10 Videos

  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY|Exercise Exercises Single Correct Compounds Of Transition Elements (Zinc)|3 Videos

  • COORDINATION COMPOUNDS

    CENGAGE CHEMISTRY|Exercise Archives Subjective|18 Videos

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise Archieves Subjective|35 Videos

Similar Questions

Explore conceptually related problems

Which fo the following metal is rendered passive by the action of highly concentrated nitric acid (~80%)?

Which of the following is rendered passive by conc. HNO_(3) is

Which of the following metals is rendered passive by conc. HNO_(3) ?

Give reasons for the following : (i) Carbonate and sulphide ores are converted into oxides before reduction. (ii) Aluminium is rendered passive when it is dipped in conc. HNO_(3) (iii) Nonmetals do not displace hydrogen from acids. (iv) An aqueous solution of CuSO_(4) cannot be stored in an iron vessel. (v) The surface of some metals become dull when left exposed to air for a long time.

When a stable element is rendered radioactive by artifical transmutation, the phenomenon is called

Iron becomes passive by______due to formation of ______.

CENGAGE CHEMISTRY-D AND F BLOCK ELEMENTS-Exercises Single Correct Compounds Of Transition Elements (Miscellaneous Compounds)
  1. Iron is rendered passive by treatment with

    Text Solution

    |

  2. Nitriding is a process of hardening steel by treating it inan atmosphe...

    Text Solution

    |

  3. Which of the following is used for joining the broken pieces of glass ...

    Text Solution

    |

  4. Which method is based on distribution principle?

    Text Solution

    |

  5. Which of the following statement is wrong?

    Text Solution

    |

  6. When H2S has is passed through an orange red solution (X), the solutio...

    Text Solution

    |

  7. Which of the following statement is incorrect?

    Text Solution

    |

  8. A man made white silvery metal,radioactive innature has a strong tende...

    Text Solution

    |

  9. From a solution of CuSO4 the metal used to recover copper is

    Text Solution

    |

  10. Iron, once dipped in concentrated H2SO4, does not displace copper from...

    Text Solution

    |

  11. Which of the followig ions will finally give a black precipitate with ...

    Text Solution

    |

  12. The compound which gives oxygen on moderate heating is

    Text Solution

    |

  13. Identify the statement which is not correct regarding CuSO4?

    Text Solution

    |

  14. KI and CuSO4 solutions when mixed give

    Text Solution

    |

  15. Bordeaux used a fungicide is a mixture of

    Text Solution

    |

  16. Mercury is the only metal which is liquid at 0^@C this is due to its

    Text Solution

    |

  17. Which of the following is false for Hg?

    Text Solution

    |

  18. Which compound is volatile on heating?

    Text Solution

    |

  19. Which one of the following pairs of substances on reaction will not no...

    Text Solution

    |

  20. Which of the following is not the characteristic of zinc?

    Text Solution

    |