Concept explainers
a)
Interpretation:
Where the absorptions due to 4-penten-2-one can be observed in the IR spectrum is to be stated.
Concept introduction:
To show:
Where the absorptions due to 4-penten-2-one can be observed in the IR spectrum.
b)
Interpretation:
Where the absorptions due to 3-penten-2-one can be observed in the IR spectrum is to be stated.
Concept introduction:
Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm-1. Aldehydes show two characteristic C-H absorptions between 2700-2760cm-1 and 2800-2860 cm-1. Saturated aldehydes absorb near 1730 cm-1 while aromatic aldehydes and α, β- unsaturated aldehydes absorb near 1705 cm-1. Saturated ketones and cyclohexanones absorb near 1715 cm-1 while aromatic ketones and α, β- unsaturated ketones absorb near 1685-1690 cm-1.
To show:
Where the absorptions due to 3-penten-2-one can be observed in the IR spectrum.
c)
Interpretation:
Where the absorptions due to 2,2- dimethylcyclopentanone can be observed in the IR spectrum is to be stated.
Concept introduction:
Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm-1. Aldehydes show two characteristic C-H absorptions between 2700-2760cm-1 and 2800-2860 cm-1. Saturated aldehydes absorb near 1730 cm-1 while aromatic aldehydes and α, β- unsaturated aldehydes absorb near 1705 cm-1. Saturated ketones and cyclohexanones absorb near 1715 cm-1 while aromatic ketones and α, β- unsaturated ketones absorb near 1685-1690 cm-1. Cyclopentanones absorb around 1750 cm-1.
To show:
Where the absorptions due to 2,2-dimethylcyclopentanone can be observed in the IR spectrum.
d)
Interpretation:
Where the absorptions due to m-chlorobenzaldehyde can be observed in the IR spectrum is to be stated.
Concept introduction:
Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm-1. Aldehydes show two characteristic C-H absorptions between 2700-2760cm-1 and 2800-2860 cm-1. Saturated aldehydes absorb near 1730 cm-1 while aromatic aldehydes and α, β- unsaturated aldehydes absorb near 1705 cm-1. Saturated ketones and cyclohexanones absorb near 1715 cm-1 while aromatic ketones and α, β- unsaturated ketones absorb near 1685-1690 cm-1.
To show:
Where the absorptions due to m-chlorobenzaldehyde can be observed in the IR spectrum.
e)
Interpretation:
Where the absorptions due to 3-cyclohexenone can be observed in the IR spectrum is to be stated.
Concept introduction:
Aldehydes and ketones show a strong absorption band in IR from i660-1770 cm-1. Aldehydes show two characteristic C-H absorptions between 2700-2760cm-1 and 2800-2860 cm-1. Saturated aldehydes absorb near 1730 cm-1 while aromatic aldehydes and α, β- unsaturated aldehydes absorb near 1705 cm-1. Saturated ketones and cyclohexanones absorb near 1715 cm-1 while aromatic ketones and α, β- unsaturated ketones absorb near 1685-1690 cm-1.
To show:
Where the absorptions due to cyclohex-3-ene-1-one can be observed in the IR spectrum.
f)
Interpretation:
Where the absorptions due to 2-hexenal can be observed in the IR spectrum is to be stated.
Concept introduction:
Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm-1. Aldehydes show two characteristic C-H absorptions between 2700-2760cm-1 and 2800-2860 cm-1. Saturated aldehydes absorb near 1730 cm-1 while aromatic aldehydes and α, β- unsaturated aldehydes absorb near 1705 cm-1. Saturated ketones and cyclohexanones absorb near 1715 cm-1 while aromatic ketones and α, β- unsaturated ketones absorb near 1685-1690 cm-1.
To show:
Where the absorptions due to 2-hexenal can be observed in the IR spectrum.
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Check out a sample textbook solutionChapter 19 Solutions
Organic Chemistry
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