Class 9 Science Chemistry Is Matter Around Us Pure
525
150 A suspension of liquid droplets or fine solid particles in a gas is called :
(a)
aerosol
(b)
particulate
(c)
both a and b
(d)
colloid
Correct answer: (c)
Solution: A suspension of liquid droplets or fine solid particles in a gas is called an aerosol or particulate. In the atmosphere these consist of fine dust and soot particles, sea salt, biogenic and volcanogenic sulfates, nitrates, and cloud droplets.
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is matter around us pure
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