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  4. Pauling's electronegativity values for elements are useful in predicting

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Q. Pauling's electronegativity values for elements are useful in predicting

AIPMTAIPMT 1989Classification of Elements and Periodicity in Properties

Solution:

Pauling's electronegativity values are useful in determination of polarity of the bond in molecules. If electronegativity difference is zero, then the molecule is non-polar otherwise it is polar.
$ \, \, \, \, \, \, \, \, \, \, \, \, x_A -x_B =0.028 \sqrt \Delta E$
$x_A \, and \, x_B$ are electronegativities of the atoms
A and B respectively. While,
$\Delta$E = actual bond energy $-\sqrt{E_{A -A} \times E_{B-B}}$