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A substance appears coloured because...

A substance appears coloured because

A

it absorbs light at specific wavelength in the visible part and reflects rest of the wavelengths

B

ligands absorb different wavelengths of light which give colour to the complex

C

it absorbs white light and shows different colours at different wavelength

D

it is diamagnetic in nature .

Text Solution

Verified by Experts

The correct Answer is:
A
A substance absorbs light at specific wavelength in the visible part of the spectrum and reflects the rest of the wavelengths . Each wavelength represents a different colour hence corresponding colour is observed .
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NCERT FINGERTIPS-COORDINATION COMPOUNDS -Bonding In Coordination Compounds
  1. Which of the following complexes will show maximum paramagnetism ?

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  2. Match the column I with column II and mark the appropriate choice .

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  3. Electronic configuration of [Cu(NH(3))(6)]^(2+) on the basis of crysta...

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  4. Which of the following energy level diagram for [FeF(6)]^(3-) is corre...

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  5. In [NiCl(4)]^(2-) ,the number of unparied electron is

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  6. Which of the following shell from an octahedral complex

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  7. The value of 'spin only' magnetic moment for one of the following conf...

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  8. Which of the following statements is/are correct ? (i) In octahedra...

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  9. [FeF(6)]^(3-) is paramagnetic due to presence of unpaired electrons in...

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  10. [Co(Cr(2)O(4))(3)]^(3-) is a

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  11. What are the correct oxidation state , coordination number , configura...

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  12. Which of the following statements is correct about [Co(H(2)O)(6)]^(2+)...

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  13. The increasing order of the crystal field splitting power of some comm...

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  14. What is crystal field splitting energy? How does the magnitude of tria...

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  15. Why are low spin tetrahedral complexes not formed ?

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  16. A substance appears coloured because

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  17. Match the complex ions given in column I with their colour given in co...

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  18. CuSO(4).5H(2)O is blue in colour while CuSO(4) is colourless. Why ?

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  19. [Fe(CN)(6)]^(4-) and [Fe(H(2)O)(6)]^(2+) are of different colours in d...

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  20. Explain why hexacayano complexe of metals in their +2 oxidation state ...

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