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Which of the following trioxides can exi...

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.

Text Solution

Verified by Experts

The correct Answer is:
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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