Explain the following giving examples
(a) Saturated solution
(b) pure substance
(c) Colloid
(d) Suspension
Answers
Answer:
. At any particular temperature, a solution that has dissolved as much solute as it is capable of dissolving is said to be a saturated solution. Examples of saturated solutions are soft drinks and nitrogen in Earth’s soil.
b. A pure substance is one which is made up of only one kind of particles. It cannot be separated into different constituents by physical or chemical processes. Some examples of pure substances are bromine, nitric acid, calcium oxide, etc.
c. Colloids are heterogeneous mixtures in which the size of solute particles is intermediate between those in true solutions and those in suspensions and are big enough to scatter light. Some examples are: Milk, blood, paint, etc.
d. A suspension is a heterogeneous mixture in which the small particles of a solid are spread throughout a liquid without dissolving in it. The particles of a suspension can be seen by the naked eye. Some examples of suspension are Chalk – water mixture, flour in water, Milk of Magnesia etc.
Explanation:
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Answer:
Explanation:
(a) Saturated solution
A saturated solution or vapor contains the greatest concentration of a dissolved or vaporized substance that can be obtained under specified pressure and temperature conditions. eg Drinking Beverages ,The Soil etc.
(b) pure substance
A substance made up of only one kind of atoms or molecules is called a pure substance. A pure substance has the same colour taste and texture at a given temperature and pressure. A pure substance also has a fixed melting and boiling point at a constant pressure. For example hydrogen gas sodium chloride water etc.
(c) Colloid
Colloid, any substance consisting of particles substantially larger than atoms or ordinary molecules but too small to be visible to the unaided eye; more broadly, any substance, including thin films and fibres, having at least one dimension in this general size range, which encompasses about 10 −7 to 10 −3 cm. e.g smog ,foam etc
(d) Suspension
A suspension is a heterogeneous mixture that contains solid particles sufficiently large for sedimentation. The particles may be visible to the naked eye, usually must be larger than one micrometer, and will eventually settle, although the mixture is only classified as a suspension when and while the particles have not settled out ion eg. soil, clay, or silt particles suspended in water etc