TEXAS TECH OCHEM II LAB FINAL – ORGANIC CHEMISTRY II LAB STUDY GUIDE &
EXAM REVIEW 2026/2027
What type of solvent extraction will be used in this experiment?
a. solid-liquid extraction
b. liquid-gas extraction
c. solid-solid extraction
d. liquid-liquid extraction - ANS ✔✔D
An extraction solvent should be __________________ the solution solvent.
a. miscible with
b. immiscible with
c. a different color than
d. the same as - ANS ✔✔B
Acetone can react with sodium borohydride.
Answers:
True
False - ANS ✔✔T
A sample on a chromatographic column is subjected to which two opposing forces?
Answers:
a. its melting point
b. its interaction with the atmosphere outside of the column
c. its adsorption to the solid phase
d. its boiling point
e. its solubility in the elution solvent system - ANS ✔✔C E
Which term can be used to describe the addition of hydrogen to an alkene?
Answers:
a. unsaturation
b. hydrohalogenation
, c. saturation
d. desaturation - ANS ✔✔C
After adding the sodium borohydride reagent, the balloon should stay inflated for at least
______________________.
Answers:
a. 30 minutes
b. 1 hour
c. 45 minutes
d. 15 minutes - ANS ✔✔A
The H-H bond is _______________________ when molecular hydrogen is adsorbed by a metal.
Answers:
a. weakened
b. strengthened
c. shorter
d. not changed - ANS ✔✔A
Refer to the SDS of pentane (search online for "pentane SDS" or "pentane MSDS"). Find pentane's
density (also called specific gravity). Water's density is 1.0 g/mL. Is pentane more or less dense than
water? Does this mean it will be the top layer or bottom layer in an extraction with water?
Answers:
a. less dense, top layer
b. more dense, top layer
c. less dense, bottom layer
d. more dense, bottom layer - ANS ✔✔A
Which compound will strongly adsorb to the silver nitrate/silica gel stationary phase?
Answers:
a. octane
b. octene - ANS ✔✔B
Methyl methacrylate is _____________________ and toxic. This polymerization must be performed
_____________________.
Answers:
a. Inert, at home
EXAM REVIEW 2026/2027
What type of solvent extraction will be used in this experiment?
a. solid-liquid extraction
b. liquid-gas extraction
c. solid-solid extraction
d. liquid-liquid extraction - ANS ✔✔D
An extraction solvent should be __________________ the solution solvent.
a. miscible with
b. immiscible with
c. a different color than
d. the same as - ANS ✔✔B
Acetone can react with sodium borohydride.
Answers:
True
False - ANS ✔✔T
A sample on a chromatographic column is subjected to which two opposing forces?
Answers:
a. its melting point
b. its interaction with the atmosphere outside of the column
c. its adsorption to the solid phase
d. its boiling point
e. its solubility in the elution solvent system - ANS ✔✔C E
Which term can be used to describe the addition of hydrogen to an alkene?
Answers:
a. unsaturation
b. hydrohalogenation
, c. saturation
d. desaturation - ANS ✔✔C
After adding the sodium borohydride reagent, the balloon should stay inflated for at least
______________________.
Answers:
a. 30 minutes
b. 1 hour
c. 45 minutes
d. 15 minutes - ANS ✔✔A
The H-H bond is _______________________ when molecular hydrogen is adsorbed by a metal.
Answers:
a. weakened
b. strengthened
c. shorter
d. not changed - ANS ✔✔A
Refer to the SDS of pentane (search online for "pentane SDS" or "pentane MSDS"). Find pentane's
density (also called specific gravity). Water's density is 1.0 g/mL. Is pentane more or less dense than
water? Does this mean it will be the top layer or bottom layer in an extraction with water?
Answers:
a. less dense, top layer
b. more dense, top layer
c. less dense, bottom layer
d. more dense, bottom layer - ANS ✔✔A
Which compound will strongly adsorb to the silver nitrate/silica gel stationary phase?
Answers:
a. octane
b. octene - ANS ✔✔B
Methyl methacrylate is _____________________ and toxic. This polymerization must be performed
_____________________.
Answers:
a. Inert, at home
