(c) Give the reagents and observations to distinguish the following pairs of compounds: (i) CH,CH-CH, and Ci3C-CH (ii) CH,CHO and CH3COCH, (ii) CH3CH2NH2 and CH3CONH,

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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.