why Hgcl2 is colourless while hgl2 is coloured?
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Ramakrishna Mission ...
d) HgCl2 is colorless but HgI2 is intensely colored. Explain. [2] e) Explain the changes in the
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HgCl₂ is colorless while HgI₂ is colored because of the following reason:
- Any chemical substance's color is determined by its polarising, charge transfer, and color absorption abilities.
- Due to its high polarisability and charge to the metal, charge transfer process, Mercuric Iodide absorbs a red hue from visible light.
- Mercuric Chloride has low polarisability, hence it doesn't absorb color from the visible spectrum.
- Mercuric chloride, on the other hand, is a colorless chemical, but mercuric iodide is a colorful one.
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