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Which of the following statements correctly describe a polar covalent bond?

A. A polar bond is a covalent bond in which electrons are shared equally.
B. In a polar covalent bond the electron density is highest over the more electronegative atom.
C. A bond between atoms whose electronegativities differ by more than 0.4 but less than 1.7 is polar.
D. In a polar covalent bond the atom with the lower electronegativity is marked δ- because it has less electron density.

1 Answer

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Final answer:

A polar covalent bond is a covalent bond with an electronegativity difference between 0.4 and 1.7. The more electronegative atom has higher electron density in a polar covalent bond.

Step-by-step explanation:

A polar covalent bond is a covalent bond in which the electronegativity difference between the atoms is between 0.4 and 1.7. In a polar covalent bond, the electron density is highest over the more electronegative atom. The atom with the lower electronegativity is marked δ- in a polar covalent bond because it has less electron density.

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