MCQs — Matter

How does increasing temperature usually affect the solubility of gases in liquids?

A graph that shows how the solubility of a substance changes with temperature is called a:

Why do soft drink bottles sometimes fizz more and lose carbonation faster when left warm?

Two different salts are dissolved in water at the same temperature; salt A dissolves much more than salt B before reaching saturation. This shows that:

A student reads a solubility curve and finds that a salt's solubility rises sharply as temperature increases. Based on this, dissolving more of the salt would be easiest at:

A colloid is a mixture in which small particles, larger than those in a true solution, are evenly dispersed but do not settle out. Colloids are generally classified as:

Colloid particle sizes generally fall in the range of:

The scattering of a beam of light as it passes through a colloid, making the beam visible, is called the:

Milk, which contains tiny fat droplets spread through water, is an example of a:

Fog, which consists of tiny water droplets suspended in air, is an example of a:

A suspension is a mixture in which relatively large, visible particles are dispersed in a liquid and, over time, generally:

Muddy river water, in which soil particles are mixed with water and settle if left undisturbed, is an example of a:

The process of separating suspended particles from a liquid by passing the mixture through a filter is called:

Why can suspension particles be separated by filtration, while true solution particles cannot?

Chalk powder mixed with water, which settles at the bottom if left standing, is an example of a:

Why does a true solution not show the Tyndall effect, while a colloid does?

Why do suspension particles eventually settle at the bottom of a container, while colloidal particles generally do not?

A student shines a laser through three unlabelled containers: salt water, muddy water and milk. The laser beam is clearly visible passing through only one of them. Which mixture is this most likely to be?

A student filters three mixtures - salt water, muddy water, and milk - through filter paper. Which mixture would leave visible particles behind on the filter paper?

A mixture is left standing overnight. The next day, solid particles are found settled clearly at the bottom of the container. This mixture is most likely a: