Textbook Question
Indicate whether each of the following solvents is protic or aprotic:
a. chloroform (CHCl3)
b. diethyl ether
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8. Elimination Reactions
Solvents
Multiple Choice
Which of the following is a polar aprotic solvent?
A
Water
B
Methanol
C
Acetic acid
D
Dimethyl sulfoxide ()
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Verified step by step guidance1
Understand the definitions: A polar aprotic solvent is a solvent that has a significant dipole moment (polar) but does not have acidic hydrogen atoms (aprotic), meaning it cannot donate hydrogen bonds.
Analyze water: Water is polar and protic because it has O-H bonds that can donate hydrogen bonds, so it is not aprotic.
Analyze methanol: Methanol is also polar and protic due to its O-H group, which can donate hydrogen bonds.
Analyze acetic acid: Acetic acid is polar and protic because it contains an acidic O-H group capable of hydrogen bonding.
Identify DMSO (dimethyl sulfoxide): DMSO is polar due to the S=O bond but lacks acidic hydrogens, making it aprotic. Therefore, DMSO is a polar aprotic solvent.
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