Home
Class 12
CHEMISTRY
What changes occur when acidified CrO(4)...

What changes occur when acidified `CrO_(4)^(2-)` ion react with `H_(2)O_(2)` solution in presence of ether solvent?

A

Orange colour of solution turns blue

B

Oxidation state of Cr-atom decrease

C

Oxidation state of Cr-atom remains constant

D

Orange colour of solution turns green

Text Solution

Verified by Experts

The correct Answer is:
A, C
Promotional Banner

Topper's Solved these Questions

  • d-BLOCK ELEMENTS

    VK JAISWAL|Exercise MATCH THE COLUMN|4 Videos
  • d-BLOCK ELEMENTS

    VK JAISWAL|Exercise ASSERTION-REASON TYPE QUESTIONS|32 Videos
  • d-BLOCK ELEMENTS

    VK JAISWAL|Exercise Level 3|40 Videos
  • CO-ORDINATION COMPOUNDS

    VK JAISWAL|Exercise ASSERTION-REASON TYPE QUESTIONS|26 Videos
  • ENVIRONMENTAL CHEMISTRY

    VK JAISWAL|Exercise ASSERTION-REASON TYPE QUESTIONS|14 Videos

Similar Questions

Explore conceptually related problems

C_(2)H_(5)MgI reacts with HCOOC_(2)H_(5) in the presence of dry ether to give

Acidified solution of K_(2)Cr_(2)O_(7) on treatment with H_(2)O_(2) yields :

Statements 1: Both CrO_(4)^(2-) and Cr_(2)O_(7)^(2-) ions when treated with acidified H_(2)O_(2) solution gives blue solution which turns green on standing. Statement 2: Blue solution of CrO_(5) is stabilised in the presence of organic solvent,e.g., ether, pyridine, etc.

In which of the following there is a change in oxidation number ? (a) An aqueous solution of CrO_(4)^(2-) is acidified. (b) SO_(2) gas is passed through acidified Cr_(2)O_(7)^(2-) solution. (c) Cr_(2)O_(7)^(2-) solution is made alkaline. (d) CrO_(2)Cl_(2) is dissolved in NaOH.

200 mL of acidified 3 N H_(2)O_(2) is reacted with KMnO_(4) solution till there is a light tinge of purple colour. Calculated the volume of O_(2) produced at STP .

What happens when H_(2)O_(2) is shaken with acidified K_(2)Cr_(2)O_(7) solution ?

When acidified K_(2)Cr_(2)O_(7) solution is added to Sn^(2+) salts then Sn^(2+) changes to

VK JAISWAL-d-BLOCK ELEMENTS-ONE OR MORE ANSWER IS/ARE CORRECT
  1. What changes occur when acidified CrO(4)^(2-) ion react with H(2)O(2) ...

    Text Solution

    |

  2. Mercury is a liquid at 0^(@) C because of

    Text Solution

    |

  3. An element of 3d-transition series shows two oxidation states x and y,...

    Text Solution

    |

  4. The metal oxide which decomposes on heating, is:

    Text Solution

    |

  5. Which of the following acids attack(s) on copper and silver?

    Text Solution

    |

  6. Which of the following statements are true for Mohr's salt?

    Text Solution

    |

  7. Which of the following statement(s) is/are correct?

    Text Solution

    |

  8. Rosasting of copper pyrites is done:

    Text Solution

    |

  9. Identify the correct statements:

    Text Solution

    |

  10. Which statements about mercury are correct?

    Text Solution

    |

  11. Which statements about corrosive sublimate (HgCl(2)) are correct?

    Text Solution

    |

  12. Identify the statement which is correct for copper sulphate

    Text Solution

    |

  13. To an acidified dichromate solution, a pinch of Na(2)O(2) is added and...

    Text Solution

    |

  14. Pick out the correct statement(s):

    Text Solution

    |

  15. The species that undergoes disproportionational is an alkaline medium ...

    Text Solution

    |

  16. Which of the following statements regarding d block elements are true?

    Text Solution

    |

  17. Which is/are insoluble in NH(3) solution?

    Text Solution

    |

  18. Order of paramagnetic character among following element is/are"

    Text Solution

    |

  19. Choose correct statements (s) regarding the following reactions. Cr(...

    Text Solution

    |

  20. Mercuric chloride is converted into mercury by:

    Text Solution

    |