1. 2. A molecule with no polar bonds is nonpolar.
QUESTION:
Which of the following is/are true? 1. A nonpolar molecule can have polar bonds.
2. A molecule with no polar bonds is nonpolar.
A. 1 only, B. 2 only, C. both, D. neither
Statement 1 is True. If polar bonds are symmetricially oriented, the molecule would be nonpolar.
Statement 2 is True. A molecule must have at least one polar bond in order to be polar.
Which of the following is/are true? 1. A nonpolar molecule can have polar bonds.
2. A molecule with no polar bonds is nonpolar.
A. 1 only, B. 2 only, C. both, D. neither
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Statement 1 is True. If polar bonds are symmetricially oriented, the molecule would be nonpolar.
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Statement 2 is True. A molecule must have at least one polar bond in order to be polar.
There’s no way for a molecule to be polar if it doesn’t have any polar bonds.
Therefore, the correct answer is C. Both statements are true.
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2. Examples of nonpolar molecules with symmetrically-oriented polar bonds: CO2 and CF4
Here are examples of a nonpolar molecules that has polar bonds.
In Carbon dioxide, the Carbon-to-Oxygen bonds are polar, since oxygen is much more electronegative than carbon.
But the two carbon-to-oxygen bonds are oriented in opposite directions.
CLICK CLICK So, the molecule overall is nonpolar.
In carbon tetrafluoride, the carbon-to-fluorine bonds are polar, since fluorine is more electronegative than carbon.
But the four carbon-to-fluorine bonds are oriented in symmetrically.
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3. Video ID: © 2008, Project VALUE (Video Assessment Library for Undergraduate Education), Department of Physical Sciences Nicholls State University Author: Glenn V. Lo Narrator: Funded by Louisiana Board of Regents Contract No. LA-DL-SELECT-13-07/08