1)
Dip into what? -
Into what should the Karpas be dipped? Why not dip into the Charoses?
2)
Exempting the Maror -
Can this Berachah really exempt the Maror, which will be eaten only after reciting the Hagadah? And why would the Maror even need a Berachah, since it is eaten during the meal, after "Ha'Motzi"?