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Hydrocarbon without isomers?

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Scholar
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Date Posted: 7/23/2008 2:47:05 PM  Status: Live
Hydrocarbon without isomers?
Course Textbook Chapter Problem
Organic Chemistry Chemistry (9th) by Chang N/A N/A
Question Details:
Which one of the following hydrocarbons does NOT have isomers?
  1. C7H16
  2. C6H14
  3. C5H10
  4. C4H8
  5. C3H8
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Answers:

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Scholar
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Date Posted: 7/23/2008 3:29:44 PM  Status: Live
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Response:
Isomer is has the same molecular formula, but they differ by rearrangement. The answer is E because you can not rearrange propane(C3H8) into another form. Cyclo-propane is C3H6, therefore having a different molecular formula and is not an isomer.

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Apprentice
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Date Posted: 7/23/2008 6:16:14 PM  Status: Live
Asker's Rating: Helpful   
Response:
the answer is e.

there are nine for a.

four for b.

i think there are four for c as well. refer to http://www.slc.ac.nz/WorkshopClub/Workshop/answerstoproblemsonstructuralisomers.htm

there are four for d. http://wps.prenhall.com/wps/media/objects/170/174467/C4H8Isomers.html




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