Organic Chemistry: Catalytic Hydrogenation and Birch Reduction

Organic Chemistry: Catalytic Hydrogenation and Birch Reduction

Assessment

Interactive Video

Chemistry

11th - 12th Grade

Hard

Created by

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

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?