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Hint: Kerosene is oil and water is a polar solvent. The insolubility of kerosene is due to the fact that like dissolves like and hydrocarbons and water both are unlike.
Complete step by step answer:
> We all know by our common experience that hydrocarbons (kerosene, gasoline, petrol and such) just don’t dissolve in water. It is due to the fact that like dissolves like.
Also, Kerosene is lighter than water and floats on its surface rather than getting dissolved. Therefore, these are called immiscible liquid.
Thus, Immiscible liquid can be defined as 2 liquids if they are completely insoluble in each other. Such a system actually consists of 2 phases. Other examples include benzene and water. An important outcome is that the boiling point of an immiscible mixture must be lower than that of either of its components.
> Water is a polar covalent compound. It decreases the electrostatic forces of attraction, resulting in free ions in aqueous solution. Hence, ionic compounds dissolve in water. Kerosene is a non-polar organic solvent and can dissolve non-polar covalent compounds.
Hence, the correct option is (a) immiscible liquids.
Note: It should be noted that two immiscible liquids, like oil and water, are separated through separating funnels. The principle behind that is that when a mixture of two immiscible liquids is kept in a separating funnel, the liquid separates out in layers depending on their densities with the heavier forming the top layer.
Complete step by step answer:
> We all know by our common experience that hydrocarbons (kerosene, gasoline, petrol and such) just don’t dissolve in water. It is due to the fact that like dissolves like.
Also, Kerosene is lighter than water and floats on its surface rather than getting dissolved. Therefore, these are called immiscible liquid.
Thus, Immiscible liquid can be defined as 2 liquids if they are completely insoluble in each other. Such a system actually consists of 2 phases. Other examples include benzene and water. An important outcome is that the boiling point of an immiscible mixture must be lower than that of either of its components.
> Water is a polar covalent compound. It decreases the electrostatic forces of attraction, resulting in free ions in aqueous solution. Hence, ionic compounds dissolve in water. Kerosene is a non-polar organic solvent and can dissolve non-polar covalent compounds.
Hence, the correct option is (a) immiscible liquids.
Note: It should be noted that two immiscible liquids, like oil and water, are separated through separating funnels. The principle behind that is that when a mixture of two immiscible liquids is kept in a separating funnel, the liquid separates out in layers depending on their densities with the heavier forming the top layer.
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