NEET BIOLOGY

Detailed explanation-1: -The unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles-a positive charge on the hydrogen pole (side) and a negative charge on the oxygen pole (side). We say that the water molecule is electrically polar.

Detailed explanation-2: -A polar covalent bond is a covalent bond in which the atoms have an unequal attraction for electrons and so the sharing is unequal. In a polar covalent bond, sometimes simply called a polar bond, the distribution of electrons around the molecule is no longer symmetrical.

Detailed explanation-3: -A molecule with an unequal distribution of charge, which results in the molecule having a positive end and a negative end is called a polar molecule. Molecules are polar when their atoms have different levels of electronegativity, or affinity for electrons. An example of a polar molecule is water.

Detailed explanation-4: -When things are different at each end, we call them polar. Some molecules have positive and negative ends too, and when they do, we call them polar. If they don’t, we call them non-polar. Things that are polar can attract and repel each other (opposite charges attract, alike charges repel).

Detailed explanation-5: -Polar Bonds polar bond: a covalent bond that has opposite partial charges on each side (one side partially positive and one side partially negative), because of unequal sharing of electrons. For example: The bond between H and Cl in the H-Cl molecule is a polar bond.