Organic Analytical Techniques (Edexcel International A Level Chemistry)

Exam Questions

17 marks

The high resolution proton NMR spectrum of Q is shown.

q15b-paper-5-jan-2022-edexcel-ial-chemistry

Deduce the structure of Q. Justify your answer by considering the relative peak areas, the chemical shifts and the splitting patterns.

You will find it helpful to refer to page 8 of the Data Booklet.

The peak at 3.6 ppm is due to a proton environment on a carbon bonded to the benzene ring. The peak is not where it might be expected from the general values in the Data Booklet.

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