IR Spectroscopy Practice Problems
In the following practice problems, we will go over efficient strategies for solving IR spectroscopy problems. Yes, IR spectra look overwhelming at first, as there are so many peaks, but knowing where to pay attention makes it a lot easier to figure out thefunctional groups present and identify the correct structure.
Check also thispost on solving NMR practice problems step-by-step!
NMR Spectroscopy-Carbon-Dept-IR Practice Problems

Practice
Complete the following IR spectroscopy table by assigning the correct frequency, placed in random order and position, to eachfunctional group and structural unit: MoleculeA is shown as an example.


In the following IR practice problems, we will identify the compound consistent with the IR absorption peaks following three simple steps.
Label the functional groups and identify the correct compound based on the IR spectrum.


This is a 35-min video solution to all the 12 IR practice problems available toCS Prime members.Join Chemistry Steps today and get an instant access to all the answers and solutions for Organic I and II including over 10-hours of problem-solving videos.
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By joining Chemistry Steps, you will gain instant access to theanswers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction Maps,and the powerful set ofOrganic Chemistry 1 and 2 Summary Study Guides.
Label the functional groups and identify the correct compound based on the IR spectrum.



Label the functional groups and identify the correct compound based on the IR spectrum.


Label the functional groups and identify the correct compound based on the IR spectrum.

This content is for registered users only.
By joining Chemistry Steps, you will gain instant access to theanswers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction Maps,and the powerful set ofOrganic Chemistry 1 and 2 Summary Study Guides.
Label the functional groups and identify the correct compound based on the IR spectrum.

This content is for registered users only.
By joining Chemistry Steps, you will gain instant access to theanswers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction Maps,and the powerful set ofOrganic Chemistry 1 and 2 Summary Study Guides.
Label the functional groups and identify the correct compound based on the IR spectrum.

This content is for registered users only.
By joining Chemistry Steps, you will gain instant access to theanswers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction Maps,and the powerful set ofOrganic Chemistry 1 and 2 Summary Study Guides.
Label the functional groups and identify the correct compound based on the IR spectrum.

This content is for registered users only.
By joining Chemistry Steps, you will gain instant access to theanswers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction Maps,and the powerful set ofOrganic Chemistry 1 and 2 Summary Study Guides.
Label the functional groups and identify the correct compound based on the IR spectrum.

This content is for registered users only.
By joining Chemistry Steps, you will gain instant access to theanswers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction Maps,and the powerful set ofOrganic Chemistry 1 and 2 Summary Study Guides.
Label the functional groups and identify the correct compound based on the IR spectrum.

This content is for registered users only.
By joining Chemistry Steps, you will gain instant access to theanswers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction Maps,and the powerful set ofOrganic Chemistry 1 and 2 Summary Study Guides.
Label the functional groups and identify the correct compound based on the IR spectrum.

This content is for registered users only.
By joining Chemistry Steps, you will gain instant access to theanswers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction Maps,and the powerful set ofOrganic Chemistry 1 and 2 Summary Study Guides.
Label the functional groups and identify the correct compound based on the IR spectrum.

This content is for registered users only.
By joining Chemistry Steps, you will gain instant access to theanswers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction Maps,and the powerful set ofOrganic Chemistry 1 and 2 Summary Study Guides.
Label the functional groups and identify the correct compound based on the IR spectrum.

Additional Practice Problems combined with Mass Spectrometry are available to CS membershere.
This content is for registered users only.
By joining Chemistry Steps, you will gain instant access to theanswers and solutions for all the Practice Problems, including over 40 hours of problem-solving videos, Multiple-Choice Quizzes, Puzzles, Reaction Maps,and the powerful set ofOrganic Chemistry 1 and 2 Summary Study Guides.
Check Also
- NMR spectroscopy – An Easy Introduction
- NMR Chemical Shift
- NMR Chemical Shift Range and Value Table
- NMR Number of Signals and Equivalent Protons
- Homotopic Enantiotopic Diastereotopic and Heterotopic
- Homotopic Enantiotopic Diastereotopic Practice Problems
- Integration in NMR Spectroscopy
- 13C NMR NMR
- DEPT NMR: Signals and Problem Solving
- NMR Spectroscopy-Carbon-Dept-IR Practice Problems
- Solving Mass Spectrometry Practice Problems
- Mass Spectrometry Practice Problems
IR, MS, and NMR Combined Problems
15 thoughts on “IR Spectroscopy Practice Problems”
Can you post more of these?
Replyit’s wonderful
ReplyThank you! I suddenly feel like IR is something simple that I could’ve known better earlier in the semester.
ReplyAppreciate it! You made IR easy.
ReplyGood stuff to work on! Do you have more ochem practice problems?
ReplyThank you all for your feedback!
ReplyThank You!! Appreciate it!
ReplyHello, can you please give the name of the functional group of no. 3. Thanks
ReplyDear sir,
Reply
I am PhD guide in Pharmaceuticals in academics , shall i get complementary registration,
I am requesting you give for same, i will use this for Education research onlyOk👍
Reply


