Also, you forgot Poland and Hungary
Lots of other problems with this quiz.
Omissions: Hungary has 7 neighbors. Poland has 7. Slovakia has 5. Switzerland has 5.
Corrections: France has 8 European neighbors (Belgium, Luxembourg, Germany, Switzerland, Italy, Monaco, Spain, Andorra).
Russia only has 8 European neighbors (if you don't squabble about Kazakhstan and Georgia being on the edge), so there seems to be no reason to exclude it. Unlike Turkey, Russia's capital (and the majority of its population) is in Europe.
Couldn't hurt to capitalize the country names.
Thank you for telling me about the problems with this quiz and sorry for the wait.