Question

Match the following coupling constants: alkanes 0-5 Hz Cis alkenes 6-8 Hz Trans alkenes 11-18 Hz Geminal or on same C of an alkene 6-15 Hz Question 5 0.75 / 1.25 pts Once you run a sample on the following, could you recover it? Mass Spectrometry sample not recovered mc NMR sample not recovered mc Column chromatography sample recovered most c4 TLC sample not recovered mc Gas chromatography sample recovered most

Answer 1

Coupling constant

Alkanes 6-8 Hz

cis-alkene    6-14 Hz

trans-alkene 11-18 Hz

geminal or on same Carbon of alkene 0-3 Hz

The destructive techniques are those techniques in which sample can not be recovered back for further use in analysis while non-destructive techniques are those techniques in which sample can be recovered back for further use in analysis.

Mass spectrometry: destructive techniques

NMR: Non-destructive techniques

Column chromatography: Non-destructive techniques

TLC: Non-destructive techniques

Gas chromatography: destructive techniques