<u>Answer:</u> Polar molecules will form solution when mixed with water.
<u>Explanation:</u>
Polar molecules are defined as the molecules which are formed when there is a difference in electronegativities between the atoms. Dipole is created between the atoms of these molecule.
More electronegative atom will attain a partial negative charge and less electronegative atom will attain a partial positive charge.
Non-polar molecules are defined as the molecules which are formed when there is no difference in electronegativities between the atoms. The atoms have same electronegativity values.
Water is a polar molecule because of the difference in electronegativity between hydrogen and oxygen atoms.
As, we know that:
Like dissolves like which means that polar molecules will get dissolved in polar solvent only and non-polar molecules will get dissolved in non-polar solvent only.
Hence, polar molecules will form solution when mixed with water.