No specific move is needed in order to encounter and catch Virizion in Pokémon White however False Swipe is an attack that will be helpful in your pursuit to catching it.
Yes, you need Cobalion to catch Virizion. You also need him to catch Terrakion in Victory Road. They are called something like the musket three but i forgot. You meet all of them at level 42.
You'll need to defeat the Elite Four and obtain the National Dex.
Yes, you can trade Cobalion in order to acquire a Virizion however it is not necessary to trade Cobalion in order to acquire Virizion because Virizion is available for capture in Pokémon Black as well as Pokémon White after Cobalion has been caught or defeated in the Mistralton Cave.
Reshiram is not a Pokemon that can be caught in White. You need Black to catch it yourself/
You can't catch rhydon in Pokemon white. You wil need to evolve an rhyhorn at level 42 which you can catch in white Forrest.
You can't catch it on White, you need someone to trade it to you.
Victini: Event Reshiram: N's Castle(Black), Trade(White) Zekrom: Trade(Black), N's Castle(White) Cobalion: Misralton Cave Terrakion: Victory Road(you need cobalion) Virizion: Pinwheel Forest(you need cobalion) Tornadus: Across Unova(Black), Trade(White) Thunderus: Trade (Black), Across Unova(White) Landorus: Abundant Shrine (you need both Tornadus and Thunderus) Kyurem: Giant chasm
In Pinwheel forest, you need to go very deep into the forest, you will see the black shadow thingy that will lead you to Virizions Lair
You cannot catch it in the wild. You need to transfer it or trade for it.
It is exclusive to Pokemon White, you can't catch it in Pokemon Black. You would need to trade with someone who has white.
No, they will need to be traded.
You can't, you need to trade.