Question

Why is water a polar molecule?

Answer 1

Hint: A polar molecule with two or more polar bonds must have a geometry which is asymmetric in a minimum of one direction, in order that the bond dipoles don't cancel one another. Polar molecules interact through dipole–dipole intermolecular forces and hydrogen bonds. Polarity underlies a variety of physical properties including physical phenomenon, solubility, and melting and boiling points.

Complete answer:
Water molecule is polar thanks to the difference in electronegativity between O and H and it's angularity.
Water may be a polar molecule because the electrons of the hydrogen atoms get "pulled" towards the electrons of the oxygen atom. This makes a neighborhood of charge on the hydrogen atoms and therefore the Charge on the opposite End of the molecule, which is that of the oxygen atom.
Important point for that water may be a polar molecule:
• The unequal sharing of electrons gives the water molecule a small charge near its oxygen atom and a small charge near its hydrogen atoms.
• In the chemical bond between oxygen and hydrogen, the oxygen atom attracts electrons a touch more strongly than the hydrogen atoms.
• When a neutral molecule features a positive area at one end and a negative area at the opposite, it's a polar molecule.
• In a water molecule, the oxygen atom and hydrogen atoms share electrons in covalent bonds, but the sharing isn't equal.

Note:
It should be noted that albeit the chemical bond between O and H in water is of polar nature, in overall a water molecule is an electrically neutral molecule. This is often because each water molecule hasten electrons and ten protons thus making a net charge of zero and electrically neutral.