Where is the P2 laboratory in Black 2? And any tips on beating the Scientist there?
P2 Laboratory (or P2 Lab) is a small island with a lab on it. It's located in South Eastern Unova. The only way to reach it is by going West on the Southern half of Route 17, North on Route 18, and East on the Northern half of Route 17.
Inside the Lab is a Scientist. If you have a Genesect, the Scientist will challenge you to a battle.
TAKE NOTE: The following are the Pokémon that the Scientist will use. There is also a chance of him using an X-Special in the battle.
The Scientist may use an X-Special in this single battle.
After the battle, he'll give you two Drives for Genesect's Techno Blast. The drives depends on which version you're playing. Black 2 gives you the Burn Drive and Shock Drive. White 2 gives you the Chill Drive and Douse Drive.
A Dubious Disc can be picked up in the back of the room.
All this with reference to: LINK