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Organic Chemistry – Some Basic Principles and Techniques
Write a short note on Beilstein test.
Beilstein test: This test is employed to detect the presence of halogen in an organic compound. A clean copper wire flattened at one end is heated in the oxidising flame till it imparts no colour to the flame. The appearance of blue or green colour due to the formation of volatile copper halide indicates the presence of halogens in the organic compound.
Limitations. This test is not very reliable because:
(i) Compounds like pyridine, urea and thiourea, which do not contain halogens, also respond to this test.
(ii) It does not tell which member of the halogen family is present in the organic compound.
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Which characteristic is common to different isomers of a compound?
Name three alkanes which do not show chain isomerism.
Name the types of structural isomerism shown by alkanes.
Name the four main types of structural isomerism.
Write the three possible open chains of five carbon atoms
What types of structural isomerism is shown by the following pairs of organic compounds ?
Draw the structure of the tautomer of phenol and write its IUPAC name.
Define ring - chain isomerism. Given one example.?
Write the metamer of diethyl ether ?
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