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25)
The degree of polarity of a chemical bond in a molecule of a compound can be predicted by determining the difference in the
A) melting points of the elements in the compound
B) electronegativities of the bonded atoms in a molecule of the compound
C) densities of the elements in the compound
D) atomic masses of the bonded atoms in a molecule of the compound

Respuesta :

Answer:

The correct answer is B) electronegativities of the bonded atoms in a molecule of the compound .

Explanation:

When two atoms forming a bond differ in their electronegativities at that time bond polarity is generated

        In simple words a bond will be polar when the bonding electrons are not equally shared by two atoms.As a result the atom attract the bonding electron pair towards itself gain partial negative charge and the other atom gains partial positive charge.

       For HCl is a polar compound because H and Cl atom differ in their electronegativities,as a result the bonding electron pair is not shared equally by H and Cl atoms.

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