UTA Organic Chemistry Lab 2181 Quiz Answers Latest Update 2025/2026
Which of the following is not a consideration when selecting a solvent for recrystallization? -
Answers The compound of interest should be soluble in the solvent at low temperatures.
Hot filtration does not require a ______. - Answers buchner funnel
Which solvent has the highest boiling point? - Answers water
Recrystallization is used to purify ________ compounds. - Answers solid
Which of the following compounds is the least polar? - Answers Hexane
In an extraction procedure, it is advisable to: - Answers save all layers until an experiment is
complete.
Which of the following is incorrect for the description of diethyl ether (often called ether)? -
Answers Ether vapor is lighter than air
Organic chemists perform extractions of reaction mixtures several times to maximize product
yield. How many extractions would it generally take to acquire 99% yield of the product? -
Answers Three extractions.
The total numbers of stereoisomers of Tartaric Acid are: - Answers 3
The two molecules constituting the racemate you will be resolving in today's lab include: -
Answers (R)-(+)-1-phenylethylamine and (S)-(-)-1-phenylethylamine
In which solvent does the racemic 1-Phenylethylamine is dissolved during the formation of
Diastereomeric mixture in this experiment? - Answers Methanol
What is the relation between configuration and optical rotation? - Answers No relation
In this experiment, phosphoric acid is best classified as a(n) ________. - Answers catalyst
Cyclohexanol has a higher boiling point than cyclohexene due to _____. - Answers intermolecular
hydrogen bonding
The conversion of cyclohexanol to cyclohexene is considered a _______ reaction. - Answers
dehydration and elimination
Which of the following is/are commonly used as a test for unsaturation?
I. 2% KMnO4 in water
II. bromine in dichloromethane
III. cyclohexene - Answers I and II.
Which of the following is not a consideration when selecting a solvent for recrystallization? -
Answers The compound of interest should be soluble in the solvent at low temperatures.
Hot filtration does not require a ______. - Answers buchner funnel
Which solvent has the highest boiling point? - Answers water
Recrystallization is used to purify ________ compounds. - Answers solid
Which of the following compounds is the least polar? - Answers Hexane
In an extraction procedure, it is advisable to: - Answers save all layers until an experiment is
complete.
Which of the following is incorrect for the description of diethyl ether (often called ether)? -
Answers Ether vapor is lighter than air
Organic chemists perform extractions of reaction mixtures several times to maximize product
yield. How many extractions would it generally take to acquire 99% yield of the product? -
Answers Three extractions.
The total numbers of stereoisomers of Tartaric Acid are: - Answers 3
The two molecules constituting the racemate you will be resolving in today's lab include: -
Answers (R)-(+)-1-phenylethylamine and (S)-(-)-1-phenylethylamine
In which solvent does the racemic 1-Phenylethylamine is dissolved during the formation of
Diastereomeric mixture in this experiment? - Answers Methanol
What is the relation between configuration and optical rotation? - Answers No relation
In this experiment, phosphoric acid is best classified as a(n) ________. - Answers catalyst
Cyclohexanol has a higher boiling point than cyclohexene due to _____. - Answers intermolecular
hydrogen bonding
The conversion of cyclohexanol to cyclohexene is considered a _______ reaction. - Answers
dehydration and elimination
Which of the following is/are commonly used as a test for unsaturation?
I. 2% KMnO4 in water
II. bromine in dichloromethane
III. cyclohexene - Answers I and II.
