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Lab Report
Experiment 20
Pre-Lab Review Reactions of Aldehydes and Ketones
1. Are any specific safety alerts given in the experiment? List any that are given.
2. Are any specific disposal directions given in the experiment? List any that are given.
3. What types of aldehydes and ketones would you expect to be water-soluble?
4. What results are expected when the DNP test is done on:
a. an aldehyde?
b. a Ketone?
Questions
1. Which of the following reagents or tests would you use to differentiate between
and
A. Iodoform
B. Chromic Acid
C. Tollens
D. DNP
2. Which of the following reagents or tests would you use to differentiate between
and
A. Iodoform
B. Chromic Acid
C. Tollens
D. DNP
3. An unknown compound is tested with several reagents, yielding the following results:
DNP test
: A thick, yellow precipitate formed.
Tollens' test
: No precipitate or mirror was detected.
Iodoform test
: A yellow precipitate formed.
Which of the following formulas could best represent the compound?
A.
B.
C.
D.
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