PCC

seen from France

seen from Chile
seen from Brazil
seen from United States
seen from Türkiye
seen from France

seen from United States

seen from United States

seen from Türkiye

seen from United States
seen from Saudi Arabia
seen from United States

seen from Türkiye
seen from United States
seen from Malaysia

seen from United States

seen from Türkiye
seen from France
seen from Japan
seen from Türkiye
PCC
Hydration of an Alkene (it's the reverse of Dehydration of an Alcohol)
All reverse steps for this reaction are the same.
Things that determine regiosepectivity: Type of Carbocation, the number of Substituents, and if there is Conjugation