Can i go on a dual carriagway with 110cc bike

Can i go on a dual carriagway with 110cc Peugeot vox?

yes.

Even on a motorway so long as not a learner, but probably not advisable with a 50mph top speed.

With your chin on the speedo and fett on the rear indicators, you could probably gain and extra 3 or 4 mph.  Not that I would advise such a thing though.