You have two samples: one is known to be acetophenone, while the other one is 1-
ID: 839241 • Letter: Y
Question
You have two samples: one is known to be acetophenone, while the other one is 1-phenylethanol. How would you know which one is which using IR?
The presence of a strong stretch at 1745 cm-1 is indicative of 1-phenylethanol only.
The presence of a stretch at 1660 cm-1 is a C=C double bond that is indicative of 1-phenylethanol only.
The presence of a broad stretch at 3300 cm-1 is indicative of 1-phenylethanol only.
The presence of a stretch at 2985 cm-1 is indicative of acetophenone only.
You could not use IR for the identification because both compounds contain the same functional groups.
A.The presence of a strong stretch at 1745 cm-1 is indicative of 1-phenylethanol only.
B.The presence of a stretch at 1660 cm-1 is a C=C double bond that is indicative of 1-phenylethanol only.
C.The presence of a broad stretch at 3300 cm-1 is indicative of 1-phenylethanol only.
D.The presence of a stretch at 2985 cm-1 is indicative of acetophenone only.
E.You could not use IR for the identification because both compounds contain the same functional groups.
Explanation / Answer
c)The presence of a broad stretch at 3300 cm-1 is indicative of 1-phenylethanol only.
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