QUIZ 1. What is the most basic chemical representation of an enol? a. RCOOH b. RCHOH c. RCH2OH d. RO Answer: b. The most basic chemical representation of an enol is RCHOH representing an alkane to which a double bond is added as well as an alcohol group on the alkene. The actual name is alkene alcohol, which has been shortened somewhat to “enol”. It can also be represented as RR’COH, in which there are two side chains on the carbon atom. 2. What is the closest molecule chemically to the enolate molecule? a. Ketone b. Carboxylic acid anion c. Alkoxyl group anion d. RR’OO anion Answer: c. The chemical representation of the enolate anion is the RCHO anion or RR’CO, which is similar to the RCH2O alkoxyl group, both of which have the property of being nucleophilic by virtue of having a negative charge on the oxygen molecule, although the enolate molecule is more nucleophilic than the alkoxyl side chain because of the connected double bond. 3. What type of molecule can be considered the least acidic? a. Enol b. Carboxylic acid c. Alkane d. Alcohol
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