When you are asked to find bond polarity, you should compare electronegativity values of each bonding atom to the central atom.

POLAR AND NONPOLAR MOLECULES

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	true
B	false

Explanation:

Detailed explanation-1: -When you are asked to find bond polarity, you should compare electronegativity values of each bonding atom to the central atom. Will PH3 be polar or nonpolar based on the electronegativity difference and the shape?

Detailed explanation-2: -You’ll need to take the difference between the electronegativity value of the two atom. Their bond polarity is determined according to the range it falls in: Nonpolar covalent: Electronegativity difference < 0.5. Polar covalent: Electronegativity difference is 0.5-1.6.

Detailed explanation-3: -One way of estimating the ionic character of a bond-that is, the magnitude of the charge separation in a polar covalent bond-is to calculate the difference in electronegativity between the two atoms:

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AP BIOLOGY

BIOCHEMISTRY

POLAR AND NONPOLAR MOLECULES