PostLab J Unknown Aldehyde and Ketone Test Results: Fill out the tables below. I

Question

PostLab J Unknown Aldehyde and Ketone Test Results: Fill out the tables below. In the "Conclusions" column, indicate what the test allows you to conclude, if anything, about your unknown. Unknown Number: Color or Other Observations Positive or Test Conclusions You Can Make Negative Permanganate Chromic Acid Schiff's Fuchsine Iodoform Test Melting Point Range Semicarbazone 2,4-dinitrophenylhydrazone . Based on the data in the tables above, draw your unknown in the space provided. Justify your answer briefly. If you are unable to distinguish between multiple options, draw both and explain why it is difficult to choose between them. Structure(s) of Unknown: Justification:

Explanation / Answer

As it is showing Chromic acid tese Hence it is aldehyde or ketone

Again it is showing Iodoform test hence It has alteast one methyl group. So it may acetaldehyde or a ketone with one side methyl group.

Now as C-H bonds in carbon atoms containing C=O bonds will show the KMnO4 test so it is acetaldehyde, as it also show the KMnO4 test .

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