difference between polar and non polar covalent compounds
Answers
difference between non-polar covalent and polar covalent compounds
- Non-polar covalent compound: Shared pairs of electrons are equally distributed between the atoms.
- polar covalent compound: Shared pair of electrons are unequally distributed between the atoms.
- non-polar covalent compound: As the sharing of electrons is equal, therefore, atoms mutually attract electrons with equal force.
- polar covalent compound: As the sharing of electrons is unequal, therefore, more electronegative atom attracts the electron itself.
- non-polar covalent compound: A non-polar covalent molecule is symmetrical and electrically neutral. No separation of charge takes place in its molecule.
- polar covalent compound: A polar covalent molecule is symmetrical and is not electrically neutral. Separation of charges take place. The atom which attracts electrons more strongly towards itself gets slightly negatively charged and the other atom slightly positively charged.
Polar:
The 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:
The 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
