Question

Tell how you could distinguish between the pair of compounds by their infrared spectra: compound a ch3ch2ch2n(ch3)2 and compound b ch3ch2ch2nh2

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.

Answer 1

Answer:-

b. compound b will show an nh absorption while compound a will not.

Explanation:-

For compound B CH3CH2CH2NH2 there are two N-H bonds present. So it will show NH absorption.

But in compound A CH3CH2CH2N(CH3)2 there are no N-H bonds. So it will not show NH absorption.