
Organic Chemistry: Catalytic Hydrogenation and Birch Reduction

Interactive Video
•
Chemistry
•
11th - 12th Grade
•
Hard
Jennifer Brown
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary focus of the lesson discussed in the video?
Polymerization of alkenes
Reduction reactions involving pi electrons in benzene
Oxidation reactions in alkanes
Substitution reactions in alkenes
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does classic catalytic hydrogenation not work with benzene?
Benzene forms a different product
Benzene lacks pi electrons
The pi electrons in benzene are more stable than in alkenes or alkynes
Benzene is too reactive under normal conditions
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What conditions are necessary for the full reduction of benzene to cyclohexane?
Low pressure and high temperature
High pressure, high temperature, and a nickel catalyst
Room temperature and a platinum catalyst
High pressure and a copper catalyst
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main reagent used in Birch reduction?
Potassium permanganate
Sodium metal in methanol with ammonia
Lithium aluminum hydride
Hydrogen gas with a palladium catalyst
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the Birch reduction affect the pi electrons in benzene?
Reduces the number of pi electrons from six to four
Converts all pi electrons to sigma bonds
Does not affect the pi electrons
Increases the number of pi electrons
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of electron withdrawing groups in Birch reduction?
They destabilize the radical anion intermediate
They stabilize the radical anion intermediate
They have no effect on the reaction
They convert the intermediate to a cation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where does reduction take place in the presence of an electron donating group?
Far from the donating group
Adjacent to the donating group
At the center of the benzene ring
Adjacent to the withdrawing group
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