Water is a universal solvent and has hydrogen bonding. Polar molecules are those, which dissociate in water and releases hydrogen (H+) or hydroxyl ions (OH-). In the given passage, it has clearly observed that the water molecules are composed of or consists of oxygen with two hydrogen atoms.
In water molecule, the two hydrogen atoms share electrons with the more electrophilic oxygen atom. Because of the high electro negativity of oxygen, the electron pair spend most of the time towards the nucleus of the oxygen atom than the hydrogen nucleus.
Thus, in water molecule, hydrogen atoms take partial positive charge, and oxygen atom takes partial negative charge, and forms a polar covalent bond. Hence, water is a polar molecule.
Thus, the options (d), (b) and (c) are incorrect.
Water is a universal solvent and has hydrogen bonding. Polar molecules are those, which dissociate in water and releases hydrogen (H+) or hydroxyl ions (OH-). In the given passage, it has clearly observed that the water molecules are composed of or consists of oxygen with two hydrogen atoms.
Therefore, the correct option is – A. To consist of.