Home
Class 12
CHEMISTRY
Acidified K2Cr2O7 solution turns green w...

Acidified `K_2Cr_2O_7` solution turns green when `Na-2SO_3`, is added to it. This is due to the formation of

A

`Cr_2(SO_4)_3`

B

`CrO_4^(2-)`

C

`Cr_2(SO_3)_3`

D

`CrSO_4`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • d-AND f- BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise EXERCISE|1089 Videos

  • COORDINATION COMPOUNDS

    MODERN PUBLICATION|Exercise EXERCISE|971 Videos

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise EXERCISE|529 Videos

Similar Questions

Explore conceptually related problems

When H_2O_2 is shaken with an acidified solution of K_2Cr_2O_7 in presence of ether, the ethereal layer turns blue due to the formation of

How acidified K_2Cr_2O_7 reacts with the following : Na_2SO_4

Colour of acidic K_2Cr_2O_7 solution is orange / yellow .

When acidified K_2Cr_2O_7 solution is added to Sn^(2+) salts than Sn^(2+) changes to

How acidified K_2Cr_2O_7 reacts with the following : FeSO_4

The compound X on treatment with acidified K_2Cr_2O_7 gives compound Y which reacts with I_2 and Na_2CO_3 to form tri-iodomethane. The compound X is :

What happens when: K_2Cr_2O_7 is heated ?

Which gas is evolved when concentrated HCl is added to powdered potassium dichromate. On passing the evolved gas through acidified KBr solution, the solution turns brown. Write the balanced equations for the reactions involved.

The reddish brown vapours formed when sodium chloride is heated with K_2Cr_2O_7 and conc. H_2SO_4 are due to the formation of ............... .

MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Which one of the following ions will exhibit colour in aqueous solutio...

    Text Solution

    |

  2. Which of the following pairs has the same size ?

    Text Solution

    |

  3. Acidified K2Cr2O7 solution turns green when Na-2SO3, is added to it. T...

    Text Solution

    |

  4. Draw lewis structure of H2S

    Text Solution

    |

  5. Which of the following statements is not true?

    Text Solution

    |

  6. Which of the following does not give oxygen on heating ?

    Text Solution

    |

  7. Which of the following lanthanoid ions is diamagnetic ? (At. nos. Ce...

    Text Solution

    |

  8. Reason of lanthanoid contraction is :

    Text Solution

    |

  9. The reaction of acidified KMnO4 with H2O2 gives .

    Text Solution

    |

  10. The pair of compounds that cannot exist together is :

    Text Solution

    |

  11. Magnetic moment of 5.92 B.M. is given by which of the following ion ...

    Text Solution

    |

  12. Gadolinium belong to 4 f series (Z=64). Which of the following is its ...

    Text Solution

    |

  13. Because of lanthanoid contraction, which of the following pairs of ele...

    Text Solution

    |

  14. Which one of the following statement is correct when SO2 is passed thr...

    Text Solution

    |

  15. The outer shell electronic configuration of Gd (Z = 64) is

    Text Solution

    |

  16. Draw lewis dot structure of PH3

    Text Solution

    |

  17. The correct order of ionic radii of Y^(3+), La^(3+), Eu^(3+) and Lu^(3...

    Text Solution

    |

  18. Write ionic equation showing KMnO4 acting as an oxidising agent in aci...

    Text Solution

    |

  19. Which of the following pairs of transition metal ion s are the stronge...

    Text Solution

    |

  20. What is the maximum oxidation state shown by Manganese in its compound...

    Text Solution

    |