Orthodox Jewish men traditionally wear a kittel - a white garment over their outfit (suit/tux etc.) just like on the "day of atonement". to symbolize the beginning of a "clean slate" in their lives.
Before the baddeken ceremony, the grooms shoes are untied and ashes are placed upon his head in rememberence of the destruction of the holy temple, on this momentous occasion.
A groom on a Jewish wedding day wears what you wear in a English wedding
The best wedding clothes they can get.
No, he doesn't wear his wedding band until after the wedding.
A dressy dress or skirt outfit.
A dress suit, tie and shoes
They're the same white wedding dresses all other brides wear, except that Orthodox Jewish brides only wear dresses that completely cover them up.
At every Jewish wedding I've attended, the bride wore white.
Yes!
any modest, tasteful clothing is appropriate.
Yes! White is always appropriate for a Jewish groom, just like the Jewish bride. Orthodox Jewish grooms often wear a white robe called a kittel.
Most traditionally, the groom would wear the skull cap during a Jewish wedding. In certain Jewish communities the prayer shawl is draped over the bride and groom while they are under the Chuppa (wedding canopy).
Yes.