June 2017 NY Regents Chemistry Exam
38 Given the formula representing a molecule:
Which statement explains why the molecule is nonpolar?
(1) Electrons are shared between the carbon atoms and the hydrogen atoms.
(2) Electrons are transferred from the carbon atoms to the hydrogen atoms.
(3) The distribution of charge in the molecule is symmetrical.
(4) The distribution of charge in the molecule is asymmetrical.
Solution: When the distribution of charge in a molecule is symmetrical, the molecule is nonpolar.
Answer: 3
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