Which of the following is associated with colloidal particles?

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Which of the following is associated with colloidal particles?

they are smaller than 1 nm
they scatter light
both (a) and (b)
neither (a) nor (b)

2007-07-11 11:30:10 · 2 answers · asked by D 1 in Science & Mathematics ➔ Chemistry

2 answers

The wavelength of visible light occurs between 380nm and 800nm. For colloid particles to be able to scatter visible light, the particles must be of similar size to the wavelength of light being scattered. Colloid particles are commonly about 1000nm in size.

Therefore, the correct answer would be "they scatter light".

2007-07-14 07:45:42 · answer #1 · answered by Ravenwoodman 3 · 0⤊ 0⤋

They definitely scatter light. I don't believe they have to be that small, though. So, my guess would be (b).

2007-07-11 11:39:24 · answer #2 · answered by hcbiochem 7 · 0⤊ 0⤋