BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a polar covalent bond, the electrons gather around ____
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The atom with the Greatest Electronegativity
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The atom with the Lowest Electronegativity
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Each atom Equally
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None of the Above
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Explanation:
Detailed explanation-1: -A polar covalent bond (b) is intermediate between the two extremes: the bonding electrons are shared unequally between the two atoms, and the electron distribution is asymmetrical with the electron density being greater around the more electronegative atom.
Detailed explanation-2: -The larger the difference in electronegativity between the two atoms, the more polar the bond. To be considered a polar bond, the difference in electronegativity must >0.4 on the Pauling scale.
Detailed explanation-3: -In general, large differences in electronegativity result in ionic bonds, while smaller differences result in covalent bonds.
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