Which of the following molecules contains a polar covalent bond?A.H2B.COC.N2D.O2SUBMITarrow_backPREVIOUS
Question
Which of the following molecules contains a polar covalent bond?
- A. H₂
- B. CO
- C. N₂
- D. O₂
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Solution
The molecule that contains a polar covalent bond is CO.
Here's why:
A polar covalent bond is a type of chemical bond where a pair of electrons is unequally shared between two atoms. This happens when one atom is more electronegative than the other, causing electrons to spend more time closer to the more electronegative atom.
A. H2 - This is a nonpolar covalent bond because both hydrogen atoms have equal electronegativity, so they share the electrons equally.
B. CO - This is a polar covalent bond. Oxygen is more electronegative than carbon, so the shared electrons are more likely to be found around the oxygen atom.
C. N2 - This is a nonpolar covalent bond because both nitrogen atoms have the same electronegativity, so they share the electrons equally.
D. O2 - This is a nonpolar covalent bond because both oxygen atoms have the same electronegativity, so they share the electrons equally.
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