7) Benzyne is 6n Hückel aromatic. 8) Chlorine is a meta directing, activating substituent for electrophilic aromatic substitution. 9) Aromatic compounds are more stable than antiaromatic compounds. 10) Cyclopentane has less ring strain than an epoxide. 11) Cyclobutadiene is more stable than butadiene. 12) Kinetic products are always more stable than thermodynamic products. 13) Epoxides are more reactive than normal ethers.

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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.