Question 20. Below are two IR spectra for two chemical compound. One of them is an alcohol and on...

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Question 20. Below are two IR spectra for two chemical compound. One of them is an alcohol and one is an aldehyde. Please ass

Answer 1

Answer #1

a . an alcohol must show a broad peak for OH stretching at ~3400 cm-`1 and C-O stretching at 1100 cm-1

Spectrum A shows peaks at 3400 cm-1 for OH stretching , C-O stretching at 1100 cm-1.

so spectrum -1 is an alcohol

b. aldehyde must show peaks at 2700 cm-1 for C-H stretching and 1700 cm-1 for carbonyl stretching.

spectrum-B showed

peak at 2746 cm-1 for aldeyde C-H and and ~1700 cm-1 for C=O of aldehyde

so spectrum B is an aldehyde

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Answer 2

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