In the mechanism for acid catalyzed hemiacetal formation, the first step is:
A)
protonation of the carbonyl oxygen
B)
nucleophilic attack at the carbonyl carbon
C)
protonation of the oxygen of the alcohol
D)
nucleophilic attack at the carbon of the alcohol
E)
elimination of a water molecule
Question 2Which hydrogens in the following compound will be exchanged most rapidly for deuterium upon reaction with D
2O and NaOD?
A)
H
1 B)
H
2 C)
H
3 D)
H
4 E)
H
5Question 3The enol tautomer of 3-pentanone is:
A)
![](data:image/png;base64,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)
D)
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALoAAAA8CAMAAADmOVAGAAAAAXNSR0IArs4c6QAAAwBQTFRFAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA///M//+Z//9m//8z/8z//8zM/8yZ/8xm/8wz/8wA/5n//5nM/5mZ/5lm/5kz/5kA/2b//2bM/2aZ/2Zm/2Yz/2YA/zP//zPM/zOZ/zNm/zMz/zMA/wDM/wCZ/wBm/wAzzP//zP/MzP+ZzP9mzP8zzP8AzMz/zMyZzMxmzMwzzMwAzJn/zJnMzJmZzJlmzJkzzJkAzGb/zGbMzGaZzGZmzGYzzGYAzDP/zDPMzDOZzDNmzDMzzDMAzAD/zADMzACZzABmzAAzzAAAmf//mf/Mmf+Zmf9mmf8zmf8AmczMmcyZmcxmmcwzmcwAmZn/mZnMmZlmmZkzmWb/mWbMmWaZmWZmmWYzmWYAmTP/mTPMmTOZmTNmmTMzmTMAmQD/mQDMmQBmmQAzmQAAZv//Zv/MZv+ZZv9mgAAAAIAAZsz/ZszMZsyZZsxmZswzZswAZpn/ZpnMZpmZZplmZpkzZpkAZmb/ZmbMZmaZZmZmZmYzZmYAgIAAZjPMZjOZZjNmZjMzZjMAAACAZgDMZgCZZgBmZgAzZgAAM///gACAM/+ZM/9mM/8zAICAM8z/M8zMM8yZM8xmM8wzwMDAM5n/M5nMM5mZM5lmM5kzM5kAM2b/M2bMM2aZM2ZmM2YzM2YAMzP/MzPMMzOZMzNmMzMzMzMApMjwMwDMMwCZMwBmMwAzMwAA//vwoKCkAP9mAP8zAMz/AMzMgICAAMxmAMwzAMwAAJn/AJnMAJlmAJkzAJkAAGb/AGbMAGaZAGZmAGYzAGYAADP/ADPMADOZADNmADMzADMAAADMAACZAABmAAAz7gAA3QAAuwAAqgAAiAAAVQAARAAAIgAAAO4AAN0AALsAAKoAAIgAAFUAAEQAACIAABEAAADuAADdAAC7AACqAACIAABVAABEAAAiAAAR7u7u3d3dqqqqd3d3VVVVREREIiIiERERAAAAAAAAAAAA/wAAAP8A//8AAAD//wD/AP//////P4MPnAAAAitJREFUaEPtWcFxxCAMpAP34XwunzSSctKK60h7DhLGCBAgLjAeZsTDM7nIq/WyEneyOZddZlnmp1J/Yu9UdVW9SwE1TCbXYWAd52mv9p/uOnaNR0R+h9ntdUfu+MGEPBMgkanljNwXpH55Y3Hq6PoJuzsBklp7cdVXK9PtajTrlelhgPu2YnO0jX3VI2nsucmjTeowSr2qwDzVZ5xC0aModWZnVfWy3dUwapiu40ANo4ZRw3QpoIbpkks7TJdcg4LnqT6IoOg7DP6cPExjwOmjJGGvgjCvK5MEwxIqhAXwA36+W2L18QPOQTGqOgfFiYALy1c/BjtyDeA4m0VCtdlsiKJhbjbnF6C4OQxPncfIHvEauRZVItTve6vUQwYSFlO/n77gU/JA/anS/LFCFxE2MU1bmYNWq78fg2UkUZ1a4Q3FaluSqh6Zjt3ghurepx/unQpdPPXc67XWyGBA30oy0ULxTwhhnx6aqI6VFb2HsGjwd0Qdo6BjlcsUvI41vxXKNMew8YgZpQoYnrqt/oCZNMcdctJdTAGx62FUozliD0WO2SpgpNSvHgoYhFHQksS7wyY+AIz5TTL7KNFxUrANi5HuL54LzkbupQhejfnJDcOnKex5gdM/Psa3fYLFqs7fV21zglTCEDzLResm1GKWFY8Ivj/IVk+LigMVqg5e++qn8cYd2F3b90HUt9TrbbjHIgSP+hi3RmKl/sTOqOqqepcCapguuQYF/wE/vVg0ANn9XgAAAABJRU5ErkJggg==)
B)
![](data:image/png;base64,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)
E)
![](data:image/png;base64,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)
C)
Question 4The predominant product from the reaction below is:
A)
![](data:image/png;base64,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)
D)
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B)
![](data:image/png;base64,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)
E)
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C)
Question 5The number of
a-hydrogens in
![](data:image/png;base64,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)
is:
A)
1
B)
3
C)
4
D)
8
E)
14
Question 6The equilibrium that exists between the keto and enol forms of aldehydes and ketones is known as:
A)
stereoisomerism
B)
configurational isomerism
C)
geometric isomerism
D)
tautomerism
E)
positional isomerism