A) strength of the element
B) polarity of the molecule
C) size of the molecule
D) valency of the element
Correct Answer: B
Solution :
The electronegativity of elements helps in predicting polarity of the molecule. If the electron egativities are equal (or difference is 0) the bond is non-polar covalent. If the difference in electron egativities between the two atoms is > 0 but < 2.0 then the bond is polar-covalent. If the difference in electron egativities between the two atoms is 2.0 or greater, the bond is ionic.
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