A liquid solvent is a substance that is able to dissolve or disperse another substance to form a solution. Solvents are commonly used in many industries, including chemical manufacturing, pharmaceuticals, cosmetics, and cleaning products.Liquid solvents can be classified into two main categories: polar solvents and nonpolar solvents. Polar solvents have a high polarity, meaning they have a positive and negative charge, which allows them to dissolve polar compounds like water-soluble molecules. Examples of polar solvents include water, ethanol, and acetone.Nonpolar solvents have a low polarity, meaning they lack a positive and negative charge, and are therefore better at dissolving nonpolar compounds like oils and fats. Examples of nonpolar solvents include hexane, chloroform, and toluene.The choice of solvent depends on the properties of the substance being dissolved and the specific application. Care should be taken when handling solvents as they can be flammable, toxic, or hazardous to health.