Which of the following trioxides can exist as monomeric molecule ?
Which of the following trioxides can exist as monomeric molecule ?
A. `SO_3` in solid state
B. `SeO_3` in all states
C. `TeO_3`
D. `SO_3` in gaseous states.
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Correct Answer - D
In solid state, `SO_3` exists as linear chain or acyclic trimer. While in the gaseous phase, it is a monomeric molecule.
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