A student crushed a piece of chalk and mixed the chalk powder in 100 mL water. The water appeared white and cloudy. After some time the particles settled at the bottom of the container. She claims that the mixture is a suspension. What justifies her claim?
(a) The particles mix completely with water
b The particles of chalk form a separate layer.
c The particles of chalk are visible through the naked eye
d The particles of chalk are uniformly distributed in water.
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The particles of chalk form separate layer.
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