Question

please write an extensive flowchart for finding an unknown compound in organic chemistry lab, with additional details, such as the bp/mp determination, and the functional group analysis

Answer 1

Step;1

The functional group analysis is first done.

• Tests for Unsaturatuion (bromine water test)
• Tests for Alcoholic Group( ceric ammonium nitrate test,ester test,iodoform test)
• Tests for Phenolic Group ( Ferric chloride test)
• Tests for Aldehydic and Ketonic Groups (DNP test and the aldehydes only give the Schiffs test and the Tollen's test)
• Tests for Carboxylic Groups (Litmus test)
• Tests for Amino group (Carbylamines test).

Step :2

The functional group once determined then the melting point is determined at the melting point apparatus. THe melting point determination is the confirmatory test of the determination of the organic molecules.

Step:3

The spectroscopic investigation is done. The most important is the 1H-NMR, IR spectra and the Mass spectra. The Spectroscopic evidence is detremential for the unknown compound analysis.