I was given this graph and we had to do some tests in class to see what kind of

Question

I was given this graph and we had to do some tests in class to see what kind of functional groups are present. I know this has an aldehyde functional group because I had to confirm that before I could proceed in the other tests. It also tested positive for Chlorine through sodium fusion. I'm guessing a benzene ring exists because it is near 7-8. The melting point was taken to be above 200 degrees Celsius using the 2,4 DNPH test and the only aldehyde that was indicated was p-chlorobenzaldehyde. I'm not sure if this is correct because I do not see any other peaks for the aldehyde position of the graph so it may be wrong? Here is a picture of the graph.

https://dl.dropboxusercontent.com/u/2338471/2013-07-28%2014.04.32.jpg

Explanation / Answer

Its para chlro benzaldehyde only , please look at your spectrum clearly near to 10ppm there was peak merged with line that should be you aldehyde peak so what i conclude is that it was parachloro benzaldehyde only

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