Boric acid is not soluble in nonpolar solvents. Boric acid (H₃BO₃) is a polar compound, and it typically dissolves well in polar solvents, such as water and alcohols. Nonpolar solvents, like hexane or benzene, do not facilitate the dissolution of polar compounds due to the lack of similar intermolecular forces. Therefore, boric acid does not dissolve effectively in nonpolar solvents.