Who liquids form a single layer on mixing water and kerosene or glycerin why is it so?
* Polar vs. Nonpolar: Water is a polar molecule, meaning it has a slightly positive end and a slightly negative end due to the uneven sharing of electrons. Kerosene and glycerin, on the other hand, are nonpolar molecules. This means they have no distinct positive or negative regions.
* "Like Dissolves Like": Polar substances tend to dissolve in other polar substances, and nonpolar substances dissolve in other nonpolar substances. This is because the forces of attraction between similar molecules are stronger than those between dissimilar molecules.
* Density Differences: Water has a higher density than kerosene or glycerin. This means that water will sink to the bottom, while kerosene or glycerin will float on top.
In summary: Water and kerosene/glycerin are immiscible because their molecular polarities are different, and they have different densities. This leads to the formation of distinct layers when mixed.
