Infrared Spectroscopy (OCR A-Level Chemistry A): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What happens during stretching vibration of a covalent bond?
What happens during stretching vibration of a covalent bond?
Distance between atoms changes rhythmically
How does atom mass affect bond vibration frequency?
How does atom mass affect bond vibration frequency?
Heavier atoms vibrate more slowly
Which bonds vibrate at higher frequencies?
Which bonds vibrate at higher frequencies?
Stronger bonds like triple bonds
What wavenumber range covers most molecular vibrations?
What wavenumber range covers most molecular vibrations?
to
Where is the fingerprint region located in an IR spectrum?
Where is the fingerprint region located in an IR spectrum?
Below
What wavenumber range indicates O-H bonds in alcohols?
What wavenumber range indicates O-H bonds in alcohols?
to
Where does the C=O carbonyl group typically absorb?
Where does the C=O carbonyl group typically absorb?
Around
Which TWO peaks identify a carboxylic acid?
Which TWO peaks identify a carboxylic acid?
C=O at ~ & broad O-H at -
How do absorption peaks appear on a transmittance graph?
How do absorption peaks appear on a transmittance graph?
As downward dips
How do IR breathalysers detect ethanol?
How do IR breathalysers detect ethanol?
Measuring IR absorbed at ethanol's frequencies