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Resonance Structures Organic Chemistry Practice Quiz

March 15, 2019 By Leah4sci 27 Comments

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!

Filed Under: Organic Chemistry Practice Problems Tagged With: orgo practice, orgo quiz, quiz, Resonance Structures

Comments

  1. Miara says

    November 12, 2018 at 12:56 pm

    Such a wonderful site . Thank you , it’s of great help

    Reply
  2. sankalp says

    July 24, 2018 at 9:37 pm

    you make love to my hated sugject

    Reply
  3. sankalp says

    July 23, 2018 at 9:05 pm

    leaha why are you not active on your web did you stoped this
    what are you diong now

    Reply
  4. Harish says

    June 28, 2018 at 11:42 am

    Thanks and by the way us there any shirt tricks to find the no of resonat8ng structure for a compound

    Reply
  5. Sara Pettey Sandifer says

    June 13, 2018 at 8:39 pm

    In question 4 do we assume that the Nitrogen in the ring has a hydrogen bonded to it? When I was working it out I was confused that there wasn’t a charge on the N because as it is written it looks like it is only bonded to the two carbons next to it in the ring but in the solution it has a hydrogen bonded to it as well

    Reply
  6. Amila says

    May 16, 2018 at 5:04 am

    Hi, thanks for everything you are amazing and I learned a lot from you. But everytime I click on to get solution it said sent and I never get them, what should I do please.

    Reply
  7. Rachel says

    April 18, 2018 at 5:46 pm

    Hi! Thanks so much for these great practice problems. Unfortunately after clicking on the solutions link I didn’t receive the solutions via email

    Reply
  8. Himanshi says

    December 21, 2017 at 1:29 pm

    Mam where is the answer key

    Reply
  9. Akshat Jain says

    January 10, 2017 at 10:41 am

    how to email you cause link is not opening

    Reply
  10. moin says

    December 19, 2016 at 12:22 pm

    i love the way u teaching! superb!

    Reply
    • Leah4sci says

      December 29, 2016 at 3:59 pm

      Thank you, Moin!

      Reply
  11. aditya says

    December 5, 2016 at 7:57 am

    I can’t download your solution book please help

    Reply
    • Leah4sci says

      December 29, 2016 at 4:23 pm

      Hit the “Send me the solutions” red button and follow the box to receive the free solutions 🙂

      Reply
      • Minjung Kim says

        January 31, 2017 at 5:39 am

        Hi Leah.
        I followed your link but I couldn’t receive the solutions.
        Please help me.

        Reply
  12. Pay says

    September 21, 2016 at 1:24 am

    On question 3 and 4 you have extra Hydrogens on the Nitrogens for the solution sheet but not on the question. Why?

    Reply
  13. Lindsay says

    June 19, 2016 at 2:06 pm

    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.

    Reply
    • Leah4sci says

      June 21, 2016 at 10:27 pm

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

      Reply
      • Gelo says

        July 22, 2016 at 10:08 am

        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.

        Reply
        • Leah4sci says

          September 2, 2016 at 10:35 am

          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.

          Reply
  14. wael khairy says

    February 2, 2016 at 7:25 pm

    thanks for help

    Reply
    • Leah4sci says

      February 8, 2016 at 9:45 pm

      You’re welcome wael

      Reply
  15. PA says

    November 23, 2015 at 4:11 am

    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?

    Reply
    • Leah4sci says

      November 23, 2015 at 2:34 pm

      Mistake on the quiz

      Reply
  16. 2018 says

    September 24, 2015 at 7:07 pm

    where are the solutions to these problems?

    Reply
    • Leah4sci says

      September 28, 2015 at 6:33 pm

      There’s a link on the bottom of the page. Email me if you don’t see it

      Reply
      • jay says

        March 23, 2016 at 1:10 pm

        I still haven’t receive the solutions Leah. can u pls help me with it

        Reply
        • Leah4sci says

          April 4, 2016 at 5:51 pm

          Jay: Email me

          Reply

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