Give the reagents and conditions necessary for the following conversion.  A to B, B to D, B to C, B to E, E to F, E to G, G to H, H to I. Hence deduce the name and structural formula of the compounds C and I.  Compare the procedure for converting F and E to G

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UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.