Dissoudre belong to the 3
rd group. Dissoudre is a common french verb.
Dissoudre is conjugated the same way that verbs that end in :
-udre
Dissoudre is conjugated with
auxiliary avoir.
Dissoudre is a defective verb.
It can not be conjugated in all possible forms.
Dissoudre verb is
direct transitive.
French verb dissoudre can be conjugated in the reflexive form:
Se dissoudre
Dissoudre verb is a direct transitive verb, so passive voice can be used.