Home
Class 12
CHEMISTRY
A solution of potassium chromate is trea...

A solution of potassium chromate is treated with an excess of dilute nitric acid. Then the observations is

A

`Cr^(3+)` and `Cr_(2)O_(7)^(2-)` are fomed

B

`Cr_(2)O_(7)^(2-)` and `H_2O` are formed

C

`Cr_(2)O_(7)^(2-)` is reduced to +3 state of Cr

D

`Cr_(2)O_(7)^(2-)` is oxidised to + 7 state of Cr

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • D-BLOCK ELEMENTS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE-2 (LANTHANIDES AND ACTINIDES)|15 Videos

  • D-BLOCK ELEMENTS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE-3 (PREVIOUS NEET/AIPMT QUESTIONS)|43 Videos

  • D-BLOCK ELEMENTS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE-2 (ALLOYS)|5 Videos

  • D - BLOCK ELEMENTS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|50 Videos

  • DILUTE SOLUTIONS

    AAKASH SERIES|Exercise EXERCISE - 1.2|55 Videos

Similar Questions

Explore conceptually related problems

Anhydride of deutero nitric acid is

Acidified potassium dichromate is treated with hydrogen sulphide. In the reaction the oxidation number of chromium

A sample of magnesium is partially oxidised to magnesia. 3 grams of such sample is treated with excess dilute sulphuric acid and the hydrogen collected measures 1.12 L at STP. What is the weight ratio of metal and metal oxide in the sample?

98% pure nitric acid is obtained by

One gram of calcium is treated with excess dilute hydrochloric acid. Calculate the volume of hyrogen liberated at 700 torr 27^(@)C ?

X reacts with dilute nitric acid to form laughing gas . What is X?

Aniline is treated with excess of CH_(3)I . The final product is

Acetone is treated with excess of ethanol in the presence of hydrochloric acid. The product obtained is

AAKASH SERIES-D-BLOCK ELEMENTS-OBJECTIVE EXERCISE-2 (PRMANGANATE AND DICHROMATE)
  1. Acedified K2Cr2O7 cannot oxidise

    Text Solution

    |

  2. Number of electrons transferred in each case when KMnO(4) acts as an o...

    Text Solution

    |

  3. KMnO(4) is powerful oxidant where it converts into

    Text Solution

    |

  4. Four moles of KMnO(4) reacts with excess of hypo solution to produce -...

    Text Solution

    |

  5. An acidified solution of KMnO(4) oxidises

    Text Solution

    |

  6. Incorrect statement regarding the structure of dichromate is

    Text Solution

    |

  7. Reaction of KMnO4 in neutral or very weakly acidic solution can be rep...

    Text Solution

    |

  8. K2Cr2O7 cannot be used for

    Text Solution

    |

  9. A solution of potassium chromate is treated with an excess of dilute n...

    Text Solution

    |

  10. The natures of the oxides CrO and CrO3, respectively

    Text Solution

    |

  11. When acidified solution of potassium dichromate is shaken with aqueous...

    Text Solution

    |

  12. In the dichromate dianion

    Text Solution

    |

  13. The equilibrium Cr2O7^(2-) hArr 2CrO4^(2-)

    Text Solution

    |

  14. Which of the following oxides of chromium is amphoteric in nature

    Text Solution

    |

  15. Potassium permanganate acts as an oxidant in neutral, alkaline as well...

    Text Solution

    |

  16. When KMnO4 is added to oxalic acid, the decolourisation is slow in the...

    Text Solution

    |

  17. Acidified KMnO4 oxidizes nitrites to

    Text Solution

    |

  18. Permanganate ion oxidize S2O3^(2-) in fairly alkaline solutions to giv...

    Text Solution

    |

  19. When MnO(2) is fused with KOH in the presence of air, a coloured compo...

    Text Solution

    |