Home
Class 12
CHEMISTRY
Formation of coloured solution is possib...

Formation of coloured solution is possible when metal ion in the compound contain

A

lone pair of electrons

B

unpaired electrons

C

paired electrons

D

none of these.

Text Solution

Verified by Experts

The correct Answer is:
B

For the formation of coloured solution, metal ion in the compound should contain unpaired electrons.On absorbing visible light, unpaired electrons.On absorbing visible light, unpaired electron can jump form ground state to the excited state.The transmitted and reflected light appears coloured and gives colour to compound.
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2006

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos
  • KARNATAKA CET 2008

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

Similar Questions

Explore conceptually related problems

Formation of coloured ions is possible when compounds contains

Which ion gives coloured solution ?

Blue coloured compound is obtained when :

A solution of a metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution. Morever, the solution of metal ion on treatment with a solution of cobalt (II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is :

(i) You have three unlabelled test-tubes containing ethanol, ethanoic acid and soap solution. Explain the method you would use to identify the compounds in different test tubes by chemical tests using litmus paper and sodium metal. (ii) Give the reason of formation of scum when soaps are used with hard water.

When is linkage isomerism possible for a co-ordination compound ?

When a linkage isomerism is possible for co-ordination compounds ?

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2007-CHEMISTRY
  1. One mole of oxygen at 273 K and one mole of sulphur dioxide at 546 K a...

    Text Solution

    |

  2. +I effect is shown by

    Text Solution

    |

  3. Formation of coloured solution is possible when metal ion in the compo...

    Text Solution

    |

  4. Benzene reacts with chlorine in sunlight to give a final product

    Text Solution

    |

  5. In the periodic table metals usually used as catalysts belong to

    Text Solution

    |

  6. Dalton's law of partial pressures is applicable to which one of the fo...

    Text Solution

    |

  7. The general formula of a cycloalkane is

    Text Solution

    |

  8. In acetylene molecule, between the carbon atoms there are

    Text Solution

    |

  9. Which of the following is an intensive property?

    Text Solution

    |

  10. Hofmann's bromamide reaction is to convert

    Text Solution

    |

  11. IUPAC name of Na(3)[Co(NO(2))(6)] is

    Text Solution

    |

  12. Thermodynamic standard conditions of temperature and pressure are

    Text Solution

    |

  13. How many chiral carbon atoms are present in 2,3,4-trichloropentane?

    Text Solution

    |

  14. Which one of the following shows functional isomerism?

    Text Solution

    |

  15. In the ionic equation - BiO(3)^(-) + 6H^(+) + Xe^(-) → Bi^(3+) + 3H(2)...

    Text Solution

    |

  16. Molarity of a given orthophosphoric acid solution is 3 M. Its normalit...

    Text Solution

    |

  17. Acidified sodium fusion extract on addition of ferric chloride solutio...

    Text Solution

    |

  18. A body of mass 10 mg is moving with a velocity of 100 ms^(-1).The wave...

    Text Solution

    |

  19. According to Bayer's strain theory which is highly stable?

    Text Solution

    |

  20. The number of antibonding electron pairs in O(2)^(2-) molecular ion on...

    Text Solution

    |