Multiple Choice
Which of the following substances is nonpolar covalent?
13. Liquids, Solids & Intermolecular Forces
Molecular Polarity
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Which of the following statements about polar molecules is true?
A
Polar molecules have an uneven distribution of electron density.
B
Polar molecules are always nonpolar in nature.
C
Polar molecules have symmetrical charge distribution.
D
Polar molecules do not have a net dipole moment.
Verified step by step guidance1
Understand the concept of polarity: A polar molecule has a region with a slight positive charge and a region with a slight negative charge due to an uneven distribution of electron density.
Identify the characteristics of polar molecules: They have an asymmetrical shape or an uneven distribution of electrons, leading to a net dipole moment.
Evaluate the given statements: Analyze each statement to determine if it aligns with the characteristics of polar molecules.
Statement analysis: 'Polar molecules have an uneven distribution of electron density' is true because this is the defining feature of polar molecules.
Conclude by eliminating incorrect statements: 'Polar molecules are always nonpolar in nature', 'Polar molecules have symmetrical charge distribution', and 'Polar molecules do not have a net dipole moment' are false based on the definition of polar molecules.
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