Acid arrow is a long range spell. 400 ft +40 per level. If spells where you have to hit on a ranged touch attack have a range increment, like regular ranged weapons, that could be a tough hit for a low BAB caster at, say, 900 feet out.
Can't find a range increment for spells, though. Am I blind?
Can't find a range increment for spells, though. Am I blind?