Interpreting NMR Spectra (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 does represent in the rule for NMR splitting patterns?
What does represent in the rule for NMR splitting patterns?
Number of adjacent H atoms
What do integration values tell you in proton NMR?
What do integration values tell you in proton NMR?
Relative numbers of protons
A peak appears as a triplet. How many adjacent protons does this indicate?
A peak appears as a triplet. How many adjacent protons does this indicate?
2 adjacent protons
What is the typical chemical shift range for protons in environments?
What is the typical chemical shift range for protons in environments?
ppm
What does a singlet peak indicate about adjacent protons?
What does a singlet peak indicate about adjacent protons?
No adjacent protons
How many adjacent protons cause a heptet splitting pattern?
How many adjacent protons cause a heptet splitting pattern?
6 adjacent protons
Why do protons near electronegative atoms appear at higher values?
Why do protons near electronegative atoms appear at higher values?
They are deshielded
What functional group is suggested by a triplet-quartet combination?
What functional group is suggested by a triplet-quartet combination?
Ethyl group
What is the typical range for carboxylic acid protons ()?
What is the typical range for carboxylic acid protons ()?
ppm
Why do and protons typically give broad peaks?
Why do and protons typically give broad peaks?
Rapid proton exchange