When I buy a connecting ticket A->B->C, the airline usually bears responsibility on transferring me to C no matter what happens on the first leg: for example, would A->B flight be delayed, I should be provided with another option to travel B->C for no extra fee. Or, if the delay is short, the B->C aircraft may even wait a little for the connecting passengers.
Do similar regulations apply if I buy a return ticket (that is, a pair of direct flights A->B and B->A), where the time spent in B is very short (1-2 hours)? E.g. if flight A->B is delayed and I arrive at B later than my return flight departs, am I entitled for some compensation and should I be provided with replacement flight, as if in case of the connection?
P.S. I'm not specifying any exact jurisdiction or airline, I'm mostly interested in general practice in any jurisdictions rather than in some specific case.