​covalent compounds like glucose and ethanol dissolves in water. Please find me the answer

Dear Student,

For a liquid to dissolve a solid, the molecules of the liquid and solid must attract one another. Sucrose has a large number of hydroxyl groups so it forms Hydrogen bonding with water molecules and get dissolved in water.

Moreover, the bond between the oxygen and hydrogen atoms (O–H bond) in glucose gives the oxygen a slight negative charge and the hydrogen a slight positive charge which makes glucose a polar molecule.

The polar water molecules attract the negative and positive areas on the polar glucose molecules which makes glucose dissolve in water.

Alcohols contain OH group in which the Hydrogen atom is attached to an electronegative Oxygen atom, due to which it is capable of forming hydrogen bonds with water molecules leading to greater solubility of alcohol in water. However, not all alcohols are soluble in water. The solubility decreases with increases in molecular mass of the alcohols as the bulky alkyl group diminishes the hydrogen bonding with water, leading to decreased insolubility.

The covalent compounds dissolve in water due to partial or full polarity in them which causes hydrogen bonding.


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