OCHEM exam 3 Questions and Answers Already Passed Latest Update 2025-2026
The name of the following compound is - Answers cis-2-methoxycyclohexanol
How many constitutionally isomeric ethers are there with a formula of C4H10O? - Answers three
Which of the following compounds is the most soluble in water? - Answers
CH3CH2CH2CH2CH2OH
only OH
Which of the following is the correct name of the compound below? - Answers ethyl phenyl
ether
The name of the following ether is - Answers butyl isopropyl ether
The IUPAC name of the following epoxide is - Answers trans-2-ethyl-3-methyloxirane
The C—O—C bond angle in dimethyl ether is closest to - Answers 109
Consider the three compounds below.
I. CH3CH2OCH2CH3 I
I. CH3CH2CH2CH2CH3
III. CH3CH2CH2CH2OH
The two most similar in boiling point are ____________ and the two most similar in
solubility in water are ________. - Answers I and II, I and III
Match the boiling points with the following three isomers of C4H10O2 - Answers 8 1 2
The role of 18-crown-6 in the reaction shown below is to - Answers complex K by ion-dipole
attraction increasing the solubility of KF and the nucleophilicity of F ̄ .
Of the following, which yields isopropyl methyl ether as the major product with little or no by-
products? - Answers Iodine
What is the product of the following reaction? HBr (xs) - Answers xs BrOHHHH
Br
, above
OH
Which of the following is not a good method to make tert-butyl methyl ether? - Answers Br then
Na
Bruh Nahh
What is the major product of the following reaction? - Answers Br on bottom
Which of the following is not an intermediate in the reaction below? - Answers smallest answer
choice, only H
Which one of the following reactions makes the cyclic ether shown below? - Answers only
H2SO4 diol
What are the products of the reaction below? - Answers OH
CH2I + CH3I
What is the product of the following reaction? CH3C=OOOH - Answers CH2CH3 top of triangle
Which of the following is compound X of the synthesis shown below? - Answers OH Brother this
guy stinks
OH
above
Br
The reaction shown below can be described as an: - Answers acid-base reaction followed by an
intramolecular Williamson ether synthesis.
What is the product of the following sequence of reactions? Br2/H2O - Answers triangle CH3
top
What is the product of the following reaction? NaOH, H2O - Answers (S)-1,2-propanediol
What is the final product of the following sequence of reactions? PBr3 - Answers CHO ending
Which of the following reacts the fastest with NaOH, H2O? - Answers ethylene oxide (oxirane)
What is the product of the reactions below? CH=CH2 - Answers middle OCH3
What reagents and/or reaction sequence below would convert trans-3-hexene to meso- 3,4-
The name of the following compound is - Answers cis-2-methoxycyclohexanol
How many constitutionally isomeric ethers are there with a formula of C4H10O? - Answers three
Which of the following compounds is the most soluble in water? - Answers
CH3CH2CH2CH2CH2OH
only OH
Which of the following is the correct name of the compound below? - Answers ethyl phenyl
ether
The name of the following ether is - Answers butyl isopropyl ether
The IUPAC name of the following epoxide is - Answers trans-2-ethyl-3-methyloxirane
The C—O—C bond angle in dimethyl ether is closest to - Answers 109
Consider the three compounds below.
I. CH3CH2OCH2CH3 I
I. CH3CH2CH2CH2CH3
III. CH3CH2CH2CH2OH
The two most similar in boiling point are ____________ and the two most similar in
solubility in water are ________. - Answers I and II, I and III
Match the boiling points with the following three isomers of C4H10O2 - Answers 8 1 2
The role of 18-crown-6 in the reaction shown below is to - Answers complex K by ion-dipole
attraction increasing the solubility of KF and the nucleophilicity of F ̄ .
Of the following, which yields isopropyl methyl ether as the major product with little or no by-
products? - Answers Iodine
What is the product of the following reaction? HBr (xs) - Answers xs BrOHHHH
Br
, above
OH
Which of the following is not a good method to make tert-butyl methyl ether? - Answers Br then
Na
Bruh Nahh
What is the major product of the following reaction? - Answers Br on bottom
Which of the following is not an intermediate in the reaction below? - Answers smallest answer
choice, only H
Which one of the following reactions makes the cyclic ether shown below? - Answers only
H2SO4 diol
What are the products of the reaction below? - Answers OH
CH2I + CH3I
What is the product of the following reaction? CH3C=OOOH - Answers CH2CH3 top of triangle
Which of the following is compound X of the synthesis shown below? - Answers OH Brother this
guy stinks
OH
above
Br
The reaction shown below can be described as an: - Answers acid-base reaction followed by an
intramolecular Williamson ether synthesis.
What is the product of the following sequence of reactions? Br2/H2O - Answers triangle CH3
top
What is the product of the following reaction? NaOH, H2O - Answers (S)-1,2-propanediol
What is the final product of the following sequence of reactions? PBr3 - Answers CHO ending
Which of the following reacts the fastest with NaOH, H2O? - Answers ethylene oxide (oxirane)
What is the product of the reactions below? CH=CH2 - Answers middle OCH3
What reagents and/or reaction sequence below would convert trans-3-hexene to meso- 3,4-
