Which one is primary alcohol ?

1.	Which one is primary alcohol ?
Answer» Butene-2-ol Propan-2-ol Butan-1-ol 2,3-Dimethlhexane-4-ol Solution :`UNDERSET("Butanol-1")(H_(3)C-CH_(2)-CH_(2)-OVERSET(1^(@))(C)H_(2)-OH)`

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