Sir,Why the Ozone(O3) forms resonance structure And what is the hybridisation of O3, and how?And how we are define the is it paramagnetic or diamagnetic? tell me with Sir, with briefly explanation?

Dear Shuvaraj,

structure of o3 is 

According to experimental evidence, ozone is a bent molecule, with C_2v symmetry (similar to the watermolecule). The O – O distances are 127.2 pm. The O – O – O angle is 116.78°.^[9] The central atom is sp² hybridized with one lone pair. Ozone is a polar molecule with a dipole moment of 0.53 D.^[10] The bonding can be expressed as a resonance hybrid with a single bond on one side and double bond on the other producing an overall bond order of 1.5 for each side.

Ozone is a pale blue gas, slightly soluble in water and much more soluble in inert non-polar solvents such as carbon tetrachloride or fluorocarbons, where it forms a blue solution. At –112 °C, it condenses to form a dark blue liquid. It is dangerous to allow this liquid to warm to its boiling point, because both concentrated gaseous ozone and liquid ozone can detonate. At temperatures below –193 °C, it forms a violet-black solid.^[7]

Most people can detect about 0.01 μmol/mol of ozone in air where it has a very specific sharp odor somewhat resembling chlorine bleach. Exposure of 0.1 to 1 μmol/mol produces headaches, burning eyes, and irritation to the respiratory passages.^[8] Even low concentrations of ozone in air are very destructive to organic materials such as latex, plastics, and animal lung tissue.

Ozone is diamagnetic, which means that its electrons are all paired. In contrast, O₂ is paramagnetic, containing two unpaired electrons.

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