Home
Class 12
CHEMISTRY
A black compound of manganese reacts wit...

A black compound of manganese reacts with a halogen acid to give greenish yellow gas . When excess of this gas reacts with `NH_(3)` an unstable trihalide is formed. In this process, the oxidation state of nitrogen changes from

A

`-3 " to " +3`

B

`-3` to 0

C

`-3 " to " +5`

D

0 to `-3`

Text Solution

Verified by Experts

The correct Answer is:
A
`MnO_(2)+4HCl to MnCl_(2)+Cl_(2)+2H_(2)O`
`3Cl_(2)+overset(-3)(NH_(3)) to overset(+3)(NCl_(3))+3HCl`
Promotional Banner

Topper's Solved these Questions

  • THE P-BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise Multiple Choice Questions|10 Videos

  • THE P-BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise Matching Type Questions|5 Videos

  • THE P-BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise Complete the following equations|45 Videos

  • THE OXYGEN FAMILY

    DINESH PUBLICATION|Exercise PREPARATORY PACKAGE|14 Videos

Similar Questions

Explore conceptually related problems

When ozone reacts with phosphorus the oxidation state of P changes from

When zinc reacts with very dilute HNO_(3) , the oxidation state of nitrogen changes from:

When sodium reacts with excess of oxygen, oxidation number of oxygen changes from

DINESH PUBLICATION-THE P-BLOCK ELEMENTS -N.C.E.R.T. Exemplar Problems
  1. On heating with concentrated NaOH solution in an inert atmosphere of C...

    Text Solution

    |

  2. Which of the following acids forms three series of salts?

    Text Solution

    |

  3. Strong reducing behaviour of H(3)PO(2) is due to

    Text Solution

    |

  4. On heating lead nitrate forms oxides of nitrogen and lead. The oxides ...

    Text Solution

    |

  5. Which of the following elements does not show allotropy ?

    Text Solution

    |

  6. The maximum covalency of nitrogen is

    Text Solution

    |

  7. Which of the following statements is wrong ?

    Text Solution

    |

  8. A brown ring is formed in the ring test for NO(3)^(-) ion. It is due t...

    Text Solution

    |

  9. Elements of group 15 form compounds in +5 oxidatin state. However, bis...

    Text Solution

    |

  10. On heating ammonium dichromate and barium azide separately we get

    Text Solution

    |

  11. In the preparation of HNO(3), we get NO gas by catalytic oxidation of ...

    Text Solution

    |

  12. The oxidation state of central atom in the aniom of compound NaH(2)PO(...

    Text Solution

    |

  13. Which of the following is not tetrahedral in shape ?

    Text Solution

    |

  14. Which of the following are peroxoacids of sulphur ?

    Text Solution

    |

  15. Hot conc. H(2)SO(4) acts as moderately strong oxidising agent. It oxid...

    Text Solution

    |

  16. A black compound of manganese reacts with a halogen acid to give green...

    Text Solution

    |

  17. In the preparation of compounds of Xe, Bartlett had taken O(2)^(+) Pt ...

    Text Solution

    |

  18. In solid state PCl(5) is a

    Text Solution

    |

  19. Reduction potentials of some ions are given below. Arrange them in dec...

    Text Solution

    |

  20. Which of the following is isoelectronic pair ?

    Text Solution

    |