The difference in the E.N values of the bonded atoms b/w two atoms is an index to of covalent bond:
Correct answer: A. Polar nature
- A. Polar nature
- B. Non-polar nature
- C. Strength
- D. Nature
Explanation
The 'electronegativity of an atom' determines how strongly it attracts electrons to itself. The polarity of a bond is affected by the electronegativity values of the two atoms involved in that bond. A 'polar molecule' is a molecule in which one end of the molecule is slightly positive, while the other end is slightly negative. A diatomic molecule that consists of a polar covalent bond, such as HF, is a polar molecule. Hence, polar molecules result from differences in electronegativity of the atoms in the molecule.
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About Dipole Moment
Dipole moment measures the separation of positive and negative charge in a bond or molecule, with magnitude related to charge and distance, μ = q r. Questions distinguish polar bonds from polar molecules by considering bond direction, molecular geometry and whether individual bond moments cancel through symmetry.
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