JEE Advanced · 2013 · 02 Jun 2013 · Paper 2 · p-Block Elements

The correct statement(s) about

O_{3}

is(are)

(A) $O - O$ bond lengths are equal.✓ Correct
(B)Thermal decomposition of $O_{3}$ is endothermic.
(C) $O_{3}$ is diamagnetic in nature.✓ Correct
(D) $O_{3}$ has a bent structure.✓ Correct

Answer: (A), (C), (D)

Solution

Ozone (

O_{3}

) has a bent structure due to resonance. Both O-O bonds are equal in length because of resonance delocalization. The molecule has no unpaired electrons, making it diamagnetic. The thermal decomposition

2 O_{3} \to 3 O_{2}

is exothermic (releases energy), not endothermic, so option (B) is incorrect.

JEE Advanced · 2013 · 02 Jun 2013 · Paper 2 · One or more correct options

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