For each unknown you were assigned give its identity and provide support for you
ID: 491883 • Letter: F
Question
For each unknown you were assigned give its identity and provide support for your choice. Using the tests in this experiment, would you be able to distinguish between each of the following compounds if they were given to you as unknowns? Explain your answers. Give the structure for one compound (not from the possible unknown list) that would be indistinguishable from using the tests in this experiment. Consider the two functional group tests below. Would it be beneficial to include either of these tests in this experiment or would they provide information that duplicates that already available? Test - gives a positive result for but not for Lucas Test- distinguishes between 1 degree, degree, and 3 degree alcohols. Brady's reagent is a solution that produces a precipitate when it reacts with compounds containing carbonyl groups. Brady's reagent was used in this experiment. By what name is it called in this experiment? The Test is a functional group test much like those in this experiment. It gives a positive test for the first two of the compounds shown below, but not the third. For which functional group does it test? This completes the experiment.Explanation / Answer
2a) one is secondary and the other priamry alcohol. so we can use Lucas test for distiguishing tem.
b)first one is ketone, second is aldehyde.
Thus we can use Tollen's or Fehlig/'s or iodoform test to distinguish them. (the keone is methyl ketone)
3) Any secondary alcohol with CH3CH(OH)-R can not be distingushed from isopropanol by Lucas test or by iodoform test.
4) We have already used these reagents to distinguish.
5)Brady's reagent is 2,4-DNP reagetnt, that is 2,4- dinitrophenyl hydrazine reagent , which is used to identify teh carbonyl group.
6) Hinsberg reagent is p-toluene sulphonylchloride which reacts with primary and secondry amines and distinguishesand separates between primary, secondary and tertiary amines.
Thus it gives positive test for both the primary amines given and the third one a carbosylic acid does not give this test.
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