volcarona may not be considered to be a legendary as it does infact evolve from a Pokemon called larvesta, but the Pokemon volcarona is considered to be a legendary Pokemon.
No, there are no legendary Pokemon there, just a rare item.
No
You can't catch Dialga in Pokemon White. After you beat the the Elite 4, you can use the PokeTransfer to receive a Dialga from Pokemon Diamond, or Platnium.
The only legendary that can be in an Egg is Phione, which you need to breed Manaphy with a Ditto. But other than that, you can't get any Legendary Eggs.
You can't get an Hoenn Pass in Pokemon White or Black. It isn't in those versions.
There is no legendary Pokemon in Undella Bay.
Zekrom.
No you can't
Pokemon that are from the sinnoh, hoenn, kanto, johto
on pokemon black version u get the legendary pokemon reshiram!(sry if its spelt wrong) and in white u get zekrom! u get the legendary after u defet the pokemon ledge.
It's not possible, legendary Pokemon cant be bred.
there is no "white" legendary in pokemon white. its black ( and called zecrom) and in the top floor of N's castle and then after u VS N
White Kyurem
volcarona may not be considered to be a legendary as it does infact evolve from a Pokemon called larvesta, but the Pokemon volcarona is considered to be a legendary Pokemon.
No.
no