The drugstore is IN the left of the street.
Incorrect!
Brazil declared independence ON 1822.
Incorrect!
Ipanema is a famous neighborhood IN Rio de Janeiro
Correct!
Denmark is a country IN the north of Europe.
Correct!
The largest hot dog ON the world weights 3.18kg.
Incorrect!
My birthday is IN November.
Correct!
Brazil declared independence ON September 7, 1822.
Correct!
The Nile is the longest river ON the planet.
Correct!
I'm just watching some videos IN Youtube.
Incorrect!
I always watch a film ON Sundays.
Correct!