The exam is due no later than 5:00 p.m., Thursday, April 27. You may use availab

Question

The exam is due no later than 5:00 p.m., Thursday, April 27. You may use available printed and electronic resources. However, you are to work independently and many not share the contents of the exam (questions or answers) with others. Your signature below signifies your acceptance of the Honor Code Pledge: I have neither given nor received unauthorized aid on this exam. Signature _____ Circle the best description of the compound responsible for the following 1R spectrum. (a) aromatic ketone (b) carboxylic acid (c) aromatic ester (c) aliphatic aldehyde

Explanation / Answer

the answer is aliphatic aldehyde because .... there is no strectch near 1600cm-1 or 1450 cm-1 (for aromatic C=C)

also there is presence of 2 stretch mear about 2900 cm-1 which indicates presence of aldehydic proton

also there is no C=C-H stretch to support the aromatic stretch ...

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