answer 2 only please The labels of (our different liquids on a shelf fell off. T

Question

answer 2 only please The labels of (our different liquids on a shelf fell off. The four molecular formula C4H10O. The labels indicated that their structures were the four below All of the infrared spectra have a strong absorption m the 2900-3000 cm^-1 region. Why? What common structural feature in these molecules gives rise to absorption , Furthermore, the liquids that were taken from each of the four bottles have additional strong peaks They are listed below for each bottle Based on the peaks indicated foe eac match the appropriate compound above (A. B. C. or D) with the correct bottle. Bottle 1: 3500 cm^-1 Bottle 2: 1650 and 3100 cm^-1 Bottle 3: 1650, 3100 and 3500 cm^-1 Bottle 4: 1710 cm^-1

Explanation / Answer

1)

because of the SP3 C-H streching

a)

3500 cm-1 is for the compound C

b)

1650, 3100 for the compound B

c)

1650, 3100 and 3500 for the compound D

d)

1710 cm-1 for the compound A

genarally 1650 Cm-1 for C=C

3100 cm-1 for the +C-H

3500 Cm-1 for the-OH

1710 cm-1 for the C=O

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