Home
Class 12
CHEMISTRY
Ammonium dichromate is used in fireworks...

Ammonium dichromate is used in fireworks. The green coloured powder blown in air is

A

`CrO_3`

B

`Cr_2O_3`

C

Cr

D

`CrO(O_2)`

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

Why are algae green in colour ?

Why is bile green in colour?

The colour of air is-

Copper sulphate solution is green in colour.

When potassium dichromate is heated with potassium hydroxide and the solution obtained is acidified, the colour becomes

Why copper becomes green if left open in air ?

Sapna added a strip of Al to 50 mL of a solution of FeSO_4 in a test tube. The correct observation for change in colour of solution by her is. Pale green coloured solution turned blue or Colourless solution turned pale green or Pale green coloured solution remained pale green or Colourless solution turned blue

State whether the statement is true or false- Photosynthesis process is done in the presence of a green coloured pigment called nitrogen.

MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. What is lanthanoid contraction ?

    Text Solution

    |

  2. In acidic medium the equivalent weight of K2Cr2O7, is :

    Text Solution

    |

  3. Ammonium dichromate is used in fireworks. The green coloured powder bl...

    Text Solution

    |

  4. The number of moles of KMnO4 that will be needed to react with one ...

    Text Solution

    |

  5. The number of unpaired electrons in Ni^(2+) is :

    Text Solution

    |

  6. The electronic configuration of terbium (IV) (At. No. 65) is

    Text Solution

    |

  7. Which of the following statement is not correct ?

    Text Solution

    |

  8. In the standardisation of Na2S2O3 using K2Cr2O7 by iodometry, the equi...

    Text Solution

    |

  9. Give-one reaction in each case to show that H(2)O(2) is an reducin...

    Text Solution

    |

  10. The basic character of the transition metal monoxides follows the orde...

    Text Solution

    |

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

    Text Solution

    |

  12. In which of the following pairs, both the ions are coloured in aqueous...

    Text Solution

    |

  13. The number of moles of KMnO4 that will be needed to react with one ...

    Text Solution

    |

  14. Which one of the following ions will exhibit colour in aqueous solutio...

    Text Solution

    |

  15. The correct order of decreasing second ionisation enthalpy of Ti (22),...

    Text Solution

    |

  16. Transition elements exhibit a large number of oxidation states.Explain...

    Text Solution

    |

  17. Which one of the following ions will exhibit colour in aqueous solutio...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  20. Write the iupac name of the compound : K[Cr F4 O]

    Text Solution

    |