Which one of the following is a property of a suspension?
The particles scatter light and are visible to the naked eye.
A suspension is a heterogeneous mixture in which solid particles (larger than about 100 nm, i.e. 10⁻⁵ cm) are dispersed in a liquid, e.g. chalk in water or muddy water.
Because the particles are large, they can be seen with the naked eye and they scatter a beam of light passing through the mixture, making its path visible.
A suspension is not homogeneous — the particles are unevenly spread; a homogeneous, uniform mixture is a true solution.
The particles of a suspension settle down when left undisturbed, so the mixture is unstable; and they are too large to pass through filter paper, which is why filtration separates them.
Hence, the answer is The particles scatter light and are visible to the naked eye.
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Which of the following is a zone of a flame?
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II. Luminous
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An alloy is:
