9. The following substances are added to water in a beaker as shown below. The mixture is stirred well. A true solution is found in the beaker (a)Beaker A (b)Beaker B (c) Beaker soll + water commom salt water sad. +20 chart Towder H2C (d) Beaker
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Answer:
The following substances are added to water in a beaker as shown below is A beaker
Answer:
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Explanation:
A true solution is in the beaker [II].
What is a true solution?
A true solution is a homogeneous mixture.
A true solution cannot scatter light because of small size of solute particles.
The size of solute particles is less than 1 nanometre.
True solution is a clear solution and solute-solvent cannot be visibly separated.
Beaker 1:
Kerosene in water is not a true solution.
Kerosene and water stays separated in the beaker due to different densities of both liquids.
It is not a clear solution.
It is a heterogeneous solution.
Beaker 2:
Sugar in water is a true solution because sugar solute particles can dissolve completely in water.
It forms a clear solution and there is no Tyndall effect observed.
Beaker 3:
Soap in water is not a true solution,
It is a form of colloidal solution as it is not clear and scatters light.
Soap in water solution shows Tyndall effect.
Beaker 4:
Milk in water is a colloidal solution.
It is not a true solution.
Scattering of light i.e. Tyndall effect is observed in such a mixture.
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