An unknown Compound A gave, a. A negative test with bromine water Reasoning: b. When burnt in air gave plenty of soot, Reasoning: c. Its reported boiling point is1100C Reasoning: d. Its molecular formula is C7H8 Suggest a structure for compound A.

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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.