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DAT - Dental Admission Organic Chemistry: Functional Groups Flashcards

6 cards from real DAT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. What is the correct IUPAC name for CH₃CH₂OH?

    Answer: Ethanol

    CH₃CH₂OH has a two-carbon chain with a hydroxyl group; its IUPAC name is ethan-1-ol (ethanol).

  2. The IUPAC suffix '-oic acid' designates which functional group class?

    Answer: Carboxylic acids

    The '-oic acid' suffix indicates a carboxylic acid in IUPAC nomenclature (e.g., ethanoic acid = acetic acid).

  3. The compound CH₃COCH₃ has which IUPAC name?

    Answer: Propan-2-one

    CH₃COCH₃ (acetone) has three carbons with a central ketone carbonyl; its IUPAC name is propan-2-one.

  4. The ester formed from ethanol and propanoic acid is named:

    Answer: Ethyl propanoate

    Esters are named as [alkyl group from alcohol]-[carboxylate from acid]; ethanol + propanoic acid gives ethyl propanoate.

  5. The prefix 'thio-' in organic nomenclature indicates replacement of oxygen with:

    Answer: Sulfur

    The 'thio-' prefix indicates that sulfur replaces oxygen, as in thiol (-SH) being the sulfur analogue of alcohol (-OH).

  6. What is the correct IUPAC name for CH₃CH₂CHO?

    Answer: Propanal

    CH₃CH₂CHO has three carbons with a terminal aldehyde group, giving it the IUPAC name propanal.