Can somebody explain to me the dipole nature of water?
Water has an asymmetrical charge distribution; that is, though it is neutral overall, the molecule is not neutral throughout and some parts of the molecule are slightly positive, and others are slightly negative (indicated by a lower case delta (δ) (eg. δ+ refers to it being slightly positive)
This is due to the differences in electronegativity (electron-attracting ability) of its constituent elements, hydrogen and oxygen. Oxygen is a lot more electronegative than hydrogen and you can think of it as "hogging" the electrons shared in the bond. Thus, these electrons in the bonds between hydrogen and oxygen spend a lot more time around oxygen than hydrogen, and thus oxygen becomes slightly negative (due to having more than its fair share of electrons) and hydrogen becomes slightly positive.