June 2018 NY Regents Chemistry Exam
22 Given the formula representing a compound:
Which formula represents an isomer of this compound?
Solution: Isomers are molecules with the same formula but different structure. The molecule given has 4 carbons and 10 hydrogens. This eliminates choices 1 and 3 since they have the wrong number of hydrogens. Choice 4 is the same molecule a the one that is given in terms of connection. Choice 2 is the isomer of the compound given.
Answer: 2
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