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Beilstein test or copper wire test - Halogens
A clean copper wire is heated in the Bunsen flame till it does not impart any type of green colour to the flame. The heated side is dipped within the organic compound and heated again. The presence of a green or bluish green flame because of the formation of volatile cupric halides points out the presence of some halogen in the organic element. Even this test is very sensitive yet it does not confirm the existence of halogens in an organic compound as certain organic compounds such as urea, thiourea, pyridine, organic acids etc. which do not consist of halogens give this test because of the formation of volatile cupric cyanide. It doesn't tell as to which halogen is exist.
problems in chugaev elimination
Theory of Meta directing group The substituent, S takes electrons from para and ortho positions. So, m-position becomes a position of comparatively high electron density and fu
how the graph is obtained and why
Ethanol or Ethyl alcohol This is obtained by the fermentation of Molasses in the presence of enzymes as catalyst. C12H22O11+H2O→C6H12O6 + C6H12O6 (sugar)
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WHAT DOES DSA STAND FOR
Why conjugation increasaes the stability of a molecule?
Optical glass: They contain phosphorous as replacement for most of all the silica and lead silicate, containing a little CaO 2 , the latter is capable of absorbing ultraviolet lig
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