What is the molecular formula of benzenetriozonide?

Benzenetriozonide is an organic trioxide derivative of benzene formed when benzene reacts with ozone under controlled conditions. Its structure consists of a benzene ring (C₆H₆) to which three ozonide groups (O₃) are attached. Each ozonide contributes three oxygen atoms, resulting... Read More

1 ORGANIC CHEMISTRY MCQS

What is the molecular formula of benzenetriozonide?

  • C₆H₆O₉
  • C₆H₅O₈
  • C₆H₅O₉
  • C₆H₆O₆
Correct Answer: A. C₆H₆O₉

Detailed Explanation

Benzenetriozonide is an organic trioxide derivative of benzene formed when benzene reacts with ozone under controlled conditions. Its structure consists of a benzene ring (C₆H₆) to which three ozonide groups (O₃) are attached. Each ozonide contributes three oxygen atoms, resulting in a total of nine oxygen atoms in the molecule. Therefore, the molecular formula is C₆H₆O₉.


The formula can be analyzed as follows:




  • Carbon atoms (C): 6 from the benzene ring




  • Hydrogen atoms (H): 6 from the ring hydrogens




  • Oxygen atoms (O): 3 × 3 = 9 from the three ozonide groups




Benzenetriozonide is an unstable compound due to the presence of highly reactive ozonide groups. Ozonides are generally sensitive to heat, shock, or light, and they can decompose to produce oxygen and other oxidation products. The compound is mainly studied in organic synthesis and reaction mechanism studies, particularly in reactions involving ozonolysis.


Understanding the molecular formula of benzenetriozonide is important because it provides insight into the stoichiometry, reactivity, and decomposition behavior of poly-ozonides. The correct formula C₆H₆O₉ is used to calculate molar mass, predict reaction products, and design safe laboratory procedures when handling ozonides.


Other options are incorrect because:




  • C₆H₅O₈ and C₆H₅O₉ have one hydrogen less, which does not match the benzene ring structure.




  • C₆H₆O₆ underestimates the oxygen content for three ozonide groups.




This knowledge reinforces understanding of benzene derivatives, functional group additions, and molecular formula calculations in organic chemistry.

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