Can you explain why does chloroform forms green flame when tested for flame test? thanks much.?
Answer:
The heat of the flame excites the molecules of the chloroform sending many of its electrons up into higher orbits about its atoms (and the molecule). As the electrons return to their rest orbits in one or more steps, the excess energy of the electrons is converted to photons (some of which may be visible or invisible). The visible photons of the cooling chloroform (or its products if dissociated) must have a wavelength corresponding to the color you perceive.
aha.
i can
:-)
this the standard way to test organic or generally covalent compounds for halogens-u burn the on a copper wire. the green color comes from the chlorine.
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