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Answer these 6 organic practice problems they require organic chemistry knowledge. Provide explanation for each answer because they are challenging.

Screenshot (148).pngScreenshot (147).pngScreenshot (146).png

Screenshot (146).png
Question 1 (1 point)
Put these carboxylic acid derivatives in order of reactivity. Make 1 the least reactive.
X = -CI
X = -OAc (acid anhydride)
X = -NH2
V
X = -OH
Question 2 (1 point)
Which is more reactive, an ester, or an acid anhydride, and why?
An ester is more reactive because its leaving group is a highly basic alkoxide ion
An ester is more reactive because its leaving group is a weak base
An acid anhydride is more reactive because its leaving group is a highly basic
carboxylate ion
An acid anhydride is more reactive because its leaving group is a weak base
Screenshot (147).png
Question 3 (1 point)
Select the summary of steps in this mechanism, assuming this occurs in neutral to
acidic conditions
The alcohol attacks the carbonyl, forming a tetrahedrontermediate. The lone
pair electrons on the negative oxygen then re-form a double bond, pushing out
CI- Deprotonation occurs last
The Cl- leaving group leaves, forming a cation. The alcohol then attacks the
cation that was formed. Deprotonation occurs last
Deprotonation of the alcohol occurs first. The alcohol attacks the carbonyl,
forming a tetrahedrontermediate. The lone pair electrons on oxygen then re-
form a double bond, pushing out CI-
Deprotonation of the alcohol occurs first. The CI- leaving group leaves, forming a
cation. The alcohol then attacks the cation that was formed
Question 4 (1 point)
Put the steps of the mechanism of this Fischer esterification in order:
H,SO4
OH
EtOH
Water leaves
Carbonyl is protonated
Alcohol attacks C of the carbonyl
Carbonyl is deprotonated
Tetrahedron is deprotonated at -OEt and protonated at -OH
Screenshot (148).png
Question 5 (1 point)
Which reagent can make this acid chloride from a carboxylic acid?
???
OH
OHCI
O C12
SOCI2
ONaCI
Question 6 (1 point)
Which of the following is the MOST difficult to accomplish directly?
Making an anhydride from an acid chloride
Making an ester from an acid anhydride
Making an acid anhydride from a carboxylic acid
Making an ester from a carboxylic acid

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