Yes it is. As long as you have a Serbian passport you are included in the schengen visa.
Well passport is required because Serbia is in Europe, and Americans do not need a Visa
Each country will be different so this depends. In Canada your tourist visa would still be valid.
No, a UK visa is only valid for the UK. You need a "Schengen visa" for Switzerland.
Yes if you do not have any valid US Visa. No if you have a valid US Visa.
An Australian visa can be valid for different lengths of time, depending on the type of visa. Some visas are valid for a few months, while others can be valid for several years. It is important to check the specific details of your visa to know how long it is valid for.
no
A B1/B2 visa is typically valid for 10 years.
A B1/B2 visa is typically valid for 10 years.
No. Serbia and Belgium are two different countries. Serbia is in the southeast of Europe. Belgium is in the west of Europe.
Europe, Southeastern Europe.Serbia is a country in Europe.
Yes, the visa is still valid, but you will have to bring both passports (new & the expired one) every time you use visa.