Resonance Structures Organic Chemistry Practice Quiz

Resonance Structures Organic Chemistry Practice QuizNot sure if you’ve mastered resonance structures? Looking for extra practice?

Resonance is a critical topic in your organic chemistry curriculum. After watching the Resonance Structures Video Series test your knowledge with this short quiz below.

Give it a shot, then check the solutions (linked at the end) and see how you did.

Resonance Structures Practice Question 1

Warm-up question: Draw all major resonance structures for the following polyatomic ions
Resonance Quiz nitrate carbonate chlorate

 

For the step-by-step solution and explanations for Question 1, see my Resonance Practice Problems Video

Resonance Structures Practice Question 2

Draw all resonance structures and indicate the major and minor contributors. Pay attention to octets!
Resonance Quiz practice question with BH2

Resonance Structures Practice Question 3

Draw all resonance structures and indicate the major and minor contributors. Don’t forget to check for lone pairs.

Resonance Quiz practice question with enamine

Resonance Structures Practice Question 4

Show all possible resonance structures, determine major and minor contributors, and WHY.

Resonance Quiz practice with nitrogen and pi bond

Resonance Structures Practice Question 5

Show all possible resonance structures. Hint: Pay attention to octets

Resonance Quiz practice with ketone and oxygen

Resonance Structures Practice Question 6

How many resonance structures can you draw for the molecule below? Are they viable (stable)? why or why not?

Resonance Quiz practice with positive oxygen

Resonance Structures Practice Question 7

Show all resonance contributors for the molecule below. Hint: Pay attention to octets!

Resonance Quiz practice with incomplete octet carbon

Resonance Structures Practice Question 8

How many resonance structures can you draw for the molecule below? Show resonance arrows and determine which is the major contributing structure.

Resonance Quiz practice with chlorine and conjugated system

Resonance Structures Practice Question 9 & 10

Using curved arrows show all possible resonance structures for para and meta nitroaniline. Which has more resonance and why?

Need a reminder? Watch the video tutorial on Resonance Structures of Benzene  which includes examples of EWG and ERG

Resonance Quiz para nitroanilineResonance Quiz meta nitroaniline

Resonance Structures Practice Question 11

Given the ATP structure below show all possible resonance arrows. Hint: Don’t forget formal charges!

Resonance Quiz ATP

Resonance Structures Practice Question 12

Given the following resonance forms, show how to inter-convert between them using curved arrows, draw the resonance hybrid, and determine which is the major/minor contributing structure.

Need a reminder? Watch the video tutorial on Resonance Structures of Benzene 

Resonance Quiz benzene structures

Resonance Structures Practice Question 13

Given the following resonance forms, show how to inter-convert between them using curved arrows, draw the resonance hybrid, and determine which is the major/minor contributing structure.

Resonance Quiz pi bond and bromine

Resonance Structures Practice Question 14

Using curved arrows, show all possible resonance structures for the molecule shown below

Resonance Quiz multiple bi bonds with oxygen and nitrogen

Resonance Structures Practice Question 15

Using curved arrows, show all possible resonance structures for the molecule shown below. Identify the major and minor contributing structures.

Resonance Quiz double ring with sulfur

Bonus Question:

Show all possible resonance structures using curved arrows and show the resonance hybrid intermediate.

Resonance Quiz with boron and nitrogen

Send Me The solutions >>

Comments

  1. i love the way u teaching! superb!

  2. I can’t download your solution book please help

  3. Lindsay says:

    How come in number 8 the structures with Cl with a positive charge are major contributors? Shouldn’t it be a minor contributor because Cl is electronegative? Also, why are 1 and 4 minor contributors compared to 3? All have C with a positive charge.

    • Leah4sci says:

      Lindsay: Cl is highly electronegative and will resent a positive charge.

      • I am bothered by the same question as well. According to your video in resonance part 3, more electronegative atoms will resent to a negative charge.

        • No the negative charge will resonate to the more electronegative atoms. Electrons will never go to a negative means it already has too many electrons.

  4. wael khairy says:

    thanks for help

  5. Is the carbo-cation the right carbon in question 7? Or is it supposed to be the one that’s directly attached to the Oxygen?

  6. where are the solutions to these problems?

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