1. Tardigrade
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  3. Chemistry
  4. Finest gold sol is red in colour, as size of the particles increases, it appears purple, then blue and finally golden. What conclusion can be drawn from the above observation?

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Q. Finest gold sol is red in colour, as size of the particles increases, it appears purple, then blue and finally golden". What conclusion can be drawn from the above observation?

Surface Chemistry

Solution:

Larger size of particles, it scattered low wavelength of light as shown in the observation.