Home
Class 12
CHEMISTRY
When aqueous NaOH is added to an aqueous...

When aqueous NaOH is added to an aqueous solution of chromium (III ) ions, a green blue precipitate is first formed which re - dissolves to give a green solution. The green colour is due to

A

`[Cr(H_2O)_6]^(3+)`

B

`[Cr(OH)_4]^(-)`

C

`CrO_4^(2-)`

D

`[Cr(OH)_3(H_2O)_3]`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 45

    NTA MOCK TESTS|Exercise CHEMISTRY|45 Videos

  • NTA NEET SET 47

    NTA MOCK TESTS|Exercise CHEMISTRY|45 Videos

Similar Questions

Explore conceptually related problems

When a small amount of HCl is added to an aqueous solution of BiCl_3 , a white precipitate is formed. This is due to formation of

Aqueous solution of which of the following ions is green?

Blue colour of blue -green algae is due to

Write equations to represent the following observations: When NaOH is added to aqueous CuSO_(4) solutin, a pale blue precipitate is formed. On adding aqeous NH_(3) solution, When NaOH is added to give a deep blue solution. If the solution is made acidic with dilute HNO_(3) , the colour is converted back to pale blue solution.

NTA MOCK TESTS-NTA NEET SET 46-CHEMISTRY
  1. An open flask containing air is heated from 300K to 500K. What percent...

    Text Solution

    |

  2. The IUPAC name of the compound having the formula is H3C-underset(C...

    Text Solution

    |

  3. A solution of metal hydroxide (MOH) with copper sulphate and mixed tar...

    Text Solution

    |

  4. A quantity of PCI 5 was heated in a 2 litre vessel at 525 K . It disso...

    Text Solution

    |

  5. When aqueous NaOH is added to an aqueous solution of chromium (III )...

    Text Solution

    |

  6. Which product is formed when the following compound is treated with B....

    Text Solution

    |

  7. The interatomic distance in H(2) and CI(2) molecules are 74 an d198 pm...

    Text Solution

    |

  8. Which of the following is not a broad spectrum antibiotics ?

    Text Solution

    |

  9. Van Arkel method of purification of metals involves converting the met...

    Text Solution

    |

  10. The complex showing a spin -magnetic momnet of 2.82 BM is .

    Text Solution

    |

  11. The chemical formula of feldspar is

    Text Solution

    |

  12. Determine the relationship between the two compounds :

    Text Solution

    |

  13. 1.00 g of a non-electrolyte solute dissolved in 50g of benzene lowered...

    Text Solution

    |

  14. Molish test is given by :

    Text Solution

    |

  15. When phenol reacts with phthalic anhydride in presence of H2SO4 and h...

    Text Solution

    |

  16. The energy of activation for ab uncatalysed reaction is 100KJ mol ^(-1...

    Text Solution

    |

  17. The oxidation states of P in the following compounds H3PO3,PCl3,Ca3P2...

    Text Solution

    |

  18. The density of solid argon is 1.65g//mL at -233^(@)C . If the argon a...

    Text Solution

    |

  19. The atomic masses of Li and K are 7 and 39, respectively . According t...

    Text Solution

    |

  20. Which one is most reactive towards nucleophilic addition reaction?

    Text Solution

    |