The route you have to go through before Victory Road.
You cant
You find them in the wild
You cannot find a starter in the wild.
No trainers have it. But, you can find it in the wild.
You can't find it in a special place or in the wild. You can get it by:Transferring it into Pokemon WhiteTrade for it.
Togepi can be found in white forest (Pokemon White exclusive) but there is no way to catch a togetic in the wild.
You can find Joltik in Chargestone Cave, but you can't actually find a Galvantula in the wild.
Croconaw is a starter. Starter Pokemon cannot be found in the wild in any game
Latios doesn't appear wild in white without Action Replay DS
you can't find it in the wild. you can use a water stone on eevee to evolve it into vaporeon
You can't find a wild Pikachu, Pichu or Raichu in pokémon Black and White. You have to transfer it from an other game.
There is no way to find a Manectric wild in Pokemon White. You can find it by: A. Evolving Electrike (Which is also unobtainable in 5th generation) B. Transferring it from DPP or HGSS