Home
Class 11
CHEMISTRY
When H(2)O(2) is added to an acidified s...

When `H_(2)O_(2)` is added to an acidified solution of `K_(2)Cr_(2)O_(7)`

A

solution turns green due to formation of `Cr_(2)O_(3)`.

B

solution turns yellow due to formation of `K_(2)CrO_(4)`

C

a blue coloured compound `CrO(O_(2))_(2)` is formed

D

solution gives green ppt of `Cr(OH)_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS

    RESONANCE ENGLISH|Exercise Exercise 3|65 Videos
  • D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS

    RESONANCE ENGLISH|Exercise Additional Problems for Self practice (APSP)|30 Videos
  • D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS

    RESONANCE ENGLISH|Exercise Exercise 1|65 Videos
  • CHEMICAL EQUILIBRIUM

    RESONANCE ENGLISH|Exercise Advanced Level Problems (Part-3)(Stage-5)|2 Videos
  • GASEOUS STATE

    RESONANCE ENGLISH|Exercise ORGANIC CHEMISTRY(Hydrocarbon)|18 Videos

Similar Questions

Explore conceptually related problems

When H_(2)O_(2) is added to a acidified solution of K_(2)Cr_(2)O_(7) :

When SO_2 gas is passed through an acidified solution of K_2 Cr_2 O_7 , the solution turns ___ in colour.

H_(2)S gas is passed through an acidic solution of K_(2)Cr_(2)O_(7) .The solution turns milky, why?

When SO_(2) is passed through acidified K_(2)Cr_(2)O_(7) solution

20 " mL of " H_(2)O_(2) is reacted completely with acidified K_(2)Cr_(2)O_(7) solution 40 " mL of " K_(2)Cr_(3)O_(7) solution was required to oxidised the H_(2)O_(2) completely. Also, 2.0 " mL of " the same K_(2)Cr_(2)O_(7) solution required 5.0 " mL of " a 1.0 M H_(2)C_(2)O_(4) solution to reach equivalence point. Which of the following statements is/are correct?

When H_(2)S is passed through acidified K_(2)Cr_(2)O_(7) solution, the solution turns :

Which one of the following statements is correct when SO_(2) is passed through acidified K_(2)Cr_(2)O_(7) solution?

Write the equations . (i) Acidified solution of K_(2)Cr_(2)O_(7) turns green when sodium sulphite is added to it. (ii) Potassium ferricyanide is added to ferrous sulphate . (iii) Silver chloride is treated with aqueous sodium cyanide . (iv) Zinc is exposed to moist air .

(a) Name the blue compound formed in the reaction of H_(2)O_(2) with acidified K_(2)Cr_(2)O_(7) in ether? Give reaction. (b) What is the principle in the bleaching action of H_(2)O_(2) ?

When acidified solution of K_(2)Cr_(2)O_(7) is shaken with aqeous solution of FeSO_(4) , Then:

RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 2
  1. which of the following group of ion is paramagnetic in nature:

    Text Solution

    |

  2. which forms interstitial compounds?

    Text Solution

    |

  3. When H(2)O(2) is added to an acidified solution of K(2)Cr(2)O(7)

    Text Solution

    |

  4. Sodium thiosulphate is used in photography because of its:

    Text Solution

    |

  5. What happens when: Ferrous sulphate crystal are heated.

    Text Solution

    |

  6. Which of the following is not an actinoid?

    Text Solution

    |

  7. The correct statement(s) from among the following is/are? (i). all t...

    Text Solution

    |

  8. Which of the following statements is not correct?

    Text Solution

    |

  9. Total number of 3d-series transition elements contain either 3d^(1) or...

    Text Solution

    |

  10. How many of the following show variable oxidation states in their comp...

    Text Solution

    |

  11. Magnetic moment value for a d-block ion is 4.90 BM determine value of ...

    Text Solution

    |

  12. Determine total number of unpaired electrons in following ions Ti^(3...

    Text Solution

    |

  13. A black mineral (A) on heating in presence of air gives a gas (B). (A)...

    Text Solution

    |

  14. What happens when a solution of potassium iodide is added to a solutio...

    Text Solution

    |

  15. KMnO(4)underset(R.A.)overset(H^(+))toMn^(x) KMnO(4)underset(R.A.)ove...

    Text Solution

    |

  16. The no. of electrons satisfying n+l=7 for Lu (atomic number:71)

    Text Solution

    |

  17. Correct statements about transition metals are that they:

    Text Solution

    |

  18. Transition elements have greater tendency to form complexes because

    Text Solution

    |

  19. Titanium dioxide is added in the interior paints for walls of rooms, h...

    Text Solution

    |

  20. The melting point of Zn is lower as compared to those of the other ele...

    Text Solution

    |