Tell how you could distinguish between the pair of compounds by their infrared s
ID: 1010813 • Letter: T
Question
Tell how you could distinguish between the pair of compounds by their infrared spectra:
Compound A CH3CH2CH2N(CH3)2 and Compound B CH3CH2CH2NH2
Compound A will show an NH absorption while Compound B will not.
Compound B will show an NH absorption while Compound A will not.
The infrared spectra will be the same for both compounds.
There is no way to differentiate between the two compounds using IR.
a.Compound A will show an NH absorption while Compound B will not.
b.Compound B will show an NH absorption while Compound A will not.
c.The infrared spectra will be the same for both compounds.
d.There is no way to differentiate between the two compounds using IR.
Explanation / Answer
The option b. is the correct answer.
Compound B will show an NH absorption while Compound A will not.
Compound B CH3CH2CH2NH2 contains N-H bonds. Hence, it will show an NH absorption.
Compound A CH3CH2CH2N(CH3)2 lacks N-H bond. Hence, it will not show an NH absorption.
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