Go to content
Who's it for ? What's it for ?
Safety in a chemistry lab
The basics of lab experiments
Applications to drug analysis
Applications to food analysis
Experimental methodologies
Basics of vibrational spectroscopy
Introduction
A little theory
Illustrating theory
Interpretation of IR spectra
Get some practice
To find out more
Quiz: What do you remember about the IR spectrum?
In the following spectrum, H
2
O vibrations are broad because the molecule is subjected to:
A mesomeric effect
Hydrogen bonds
A mesomeric effect and hydrogen bonds
In IR peak intensity depends on:
The number of groups in the molecule
The electronegativity difference between 2 atoms
The difference in mass between 2 atoms
The number of groups present and the electronegativity difference between 2 atoms
The number of groups present and the difference in mass between 2 atoms
Combination bands in IR are:
Small
Small and narrow
Narrow
Wide
Intense and narrow
Intense and wide
Small and wide
In IR, combination bands are transitions from the vibrational sub-level 0 to an sub-level superior to state 1:
True
False
Correction
Your score
/
Try again
Next page
Previous page
I answer now
I have already answered, my opinion has changed: I do answer again
I have already answered, my opinion is the same
I will answer later
Submit
Your opinion:
Usefulness of the CHIMACTIV website:
Your use of this website
*
:
Before class
During class
After class
Other
Detail:
Your intend to visit this website again:
*
multiple answers possible
Submit
Your position:
Learner
Teacher
Teacher and researcher
Other
Detail:
Your user profile:
You are a:
Man
Woman
Your age:
15-19 years
20-24 years
25-29 years
30 years and over
Your degree:
High school
Bachelor
Master at University
University
Engineering school
Professional training
Other
Detail:
Your age:
25-34 years
35-44 years
45-54 years
55-64 years
65 years and over
Your institution:
High School
Engineering school
Other
Detail:
Your teaching levels:
*
:
High School
Bachelor of Sc.
Master
PhD
Other
Detail:
multiple answers possible
Your age:
25-34 years
35-44 years
45-54 years
55-64 years
65 years and over
Your last academic degree:
Bachelor
Bachelor of Sciences
Master
Engineer
PhD
Other
Detail:
Your status:
Professional training
Employed
Unemployed
Retired
Other
Detail:
Your professional environment:
Research unit
R&D service
Quality control
Consulting
Other
Detail:
Free comment:
To contact us
chimactiv@agroparistech.fr
Submit
