Chem 326 - Orgo II Lab Final Question
and answers rated A+ 2025
Describe solid sodium hydroxide pellets - correct answer ✔Basic
Caustic
Hygroscopic
Deliquescent
In the bromination lab, __________ is being used as an oxidizing agent, and
_____________ is being used as a reducing agent - correct answer
✔Sodium Hypochlorite
Sodium Thiosulfate
Rank the following compounds in order of reactivity to electrophilic aromatic
bromination
Aniline
Acetanilide
4-Bromoacetanilide - correct answer ✔1) Aniline
2) Acetanilide
3) 4-Bromoacetanilide
Accurately describes the hazards of concentrated acetic acid, and appropriate
safety measures - correct answer ✔Concentrated acetic acid is corrosive
and can cause skin burns. Its fumes are pungent and harmful if inhaled. It
should be kept in a fume hood, and suitable gloves and eye protection should
be worn
, Which of the following will be the limiting reactant in a diels - alder reaction?
Maleic Anhydride
Tetrahydrofuran
Furan - correct answer ✔The limiting reactant will be determined by the
exact masses/volumes you record
When a Diels-Alder reaction is capable of proceeding via either exo- or endo-
approach of the dienophile, which is typically preferred? - correct answer
✔Endo
The isolated product of the Diels-Alder reaction that you perform is which
isomer? Exo or Endo? - correct answer ✔Exo
What risk is associated with adding a solution containing potassium carbonate
to a solution containing hydrochloric acid? - correct answer ✔Release of
carbon dioxide with vigorous bubbling/frothing
Why is it important to keep the diazonium salt intermediate cold? - correct
answer ✔Diazonium salts will decompose to produce nitrogen gas and an
aryl cation
What is the purpose of sodium chloride in this experiment? - correct answer
✔The addition of salt lowers the solubility of your product in water
Why is it important to close the container of sodium borohydride after use? -
correct answer ✔It reacts with atmospheric water
and answers rated A+ 2025
Describe solid sodium hydroxide pellets - correct answer ✔Basic
Caustic
Hygroscopic
Deliquescent
In the bromination lab, __________ is being used as an oxidizing agent, and
_____________ is being used as a reducing agent - correct answer
✔Sodium Hypochlorite
Sodium Thiosulfate
Rank the following compounds in order of reactivity to electrophilic aromatic
bromination
Aniline
Acetanilide
4-Bromoacetanilide - correct answer ✔1) Aniline
2) Acetanilide
3) 4-Bromoacetanilide
Accurately describes the hazards of concentrated acetic acid, and appropriate
safety measures - correct answer ✔Concentrated acetic acid is corrosive
and can cause skin burns. Its fumes are pungent and harmful if inhaled. It
should be kept in a fume hood, and suitable gloves and eye protection should
be worn
, Which of the following will be the limiting reactant in a diels - alder reaction?
Maleic Anhydride
Tetrahydrofuran
Furan - correct answer ✔The limiting reactant will be determined by the
exact masses/volumes you record
When a Diels-Alder reaction is capable of proceeding via either exo- or endo-
approach of the dienophile, which is typically preferred? - correct answer
✔Endo
The isolated product of the Diels-Alder reaction that you perform is which
isomer? Exo or Endo? - correct answer ✔Exo
What risk is associated with adding a solution containing potassium carbonate
to a solution containing hydrochloric acid? - correct answer ✔Release of
carbon dioxide with vigorous bubbling/frothing
Why is it important to keep the diazonium salt intermediate cold? - correct
answer ✔Diazonium salts will decompose to produce nitrogen gas and an
aryl cation
What is the purpose of sodium chloride in this experiment? - correct answer
✔The addition of salt lowers the solubility of your product in water
Why is it important to close the container of sodium borohydride after use? -
correct answer ✔It reacts with atmospheric water
