Question

difference between polar and non polar???

Answer 1

Answer:

If there is a electonegativity difference between the atoms in a covalently attached bond then the molecule said as polar or if not then called as non polar molecule.

For H-Cl is a polar molecule because cl is more electronegative than hydrogen. While all diatomic molecule are non polar

Answer 2

Polar:

Strongest force and forms H bonds or dipole- dipole bonds. The atom’s electronegativity difference is less than 0.4. Polar bonds have high melting point, surface tension, boiling point and low vapour pressure. Polar molecules interact with other polar substances. These molecules have positive and negative charges on the opposite ends. Therefore they are electrically charged. Example: Sulphur, alcohol etc

Nonpolar:

Weakest force and forms Van Der Waal interactions between nonpolar bonds. The atom’s electronegativity difference is greater than 0.4. Nonpolar bonds have low melting point, surface tension, boiling point and high vapour pressure. Nonpolar molecules do not interact with other nonpolar substances. Does not have profusion of charges at opposite ends. Example: Carbon dioxide, pentane etc