Nicklas Bendtner scored the only goal of the first half after just two minutes. Aaron Ramsey fed Carl Jenkinson, who's cross was perfect for the Dane to head in.
Ramsey came closest to a second before the break, forcing McGregor into several saves, as the Gunners dominated the opening 45 minutes.
That dominance turned into a 2-0 lead minutes after the restart. Ramsey's magical pass found Ozil, and the German finished calmly.
Arsenal pushed for a third, but Arsene Wenger will be happy enough to have seen his side continue their winning ways.
Here are the player ratings for Arsenal:
|Player||Half time||Full time|
|Subs||Half time||Full time|
Wojciech Szczesny: Might be a bit cold stood out in the London fresh air so far.
Carl Jenkinson: Great delivery for Bendtner's goal and a decent contribution down the right flank.
Per Mertersacker: A relaxed evening for the German defender so far, but signs before half time that Hull were growing in confidence.
Laurent Koscielny: Shadowed Hull's front two well, considering he spent the first 25 minutes as a spectator.
Nacho Monreal: An attacking threat in the final third, but untested defensively.
Mathieu Flamini: Interrupted a couple of Hull attacks late in the first period.
Aaron Ramsey: Everywhere. The Welshman continued his rich vein of form, popping up in all corners of the pitch and testing the Hull keeper on more than one occasion.
Tomas Rosicky: A lively performance from the Czech, linking up well with Ozil at times in a fluid Arsenal side.
Mesut Ozil: Regularly patricpated on all the Gunners' attacks, but didn't quite conjure up anything noteworthy. Was close to scoring Arsenal's second with his head just before the break,
Santi Cazorla: Heavily involved but slightly wasteful in possession, particularly during a couple of counter attacks.
Nicklas Bendtner: Scored the goal and held the ball up well, but wasn't overly involved in possession. Missed one chance at the far post when Ozil's shot was parried.
Wojciech Szczesny: Did what he needed to do, maintaining his concentration. One decent save and one good claim from a dangerous cross stay in the mind.
Carl Jenkinson: A solid performance, but wasn't heavily involved in the second 45 minutes.
Per Mertersacker: Will have harder nights, but another clean sheet will be good news for the German central defender.
Laurent Koscielny: One sloppy pass tarred an other wise solid performance. Passed the ball out from the back cooly, while demonstrating a great reading of the game.
Nacho Monreal: Fantastic down the left flank, demonstrating pace and great use of the football to link up with his side's attacking players.
Mathieu Flamini: Performed a quite, but important job behind the Gunners' flair players. Got forward more after Arteta replaced Ramsey.
Aaron Ramsey: Sublime pass for Ozil's goal and increasingly Arsenal's main man. Another top performance.
Tomas Rosicky: Energetic and useful, but overshadowed by his colleagues before he was withdrawn on 70 minutes.
Mesut Ozil: Great movement to find the space for his goal and, of course, a tidy finish.
Santi Cazorla: Worked well with Monreal on the left, but didn't have his most effective night in terms of creating chances for his colleagues.
Nicklas Bendtner: Retained possession well and was generally quite good, but questions will remain over whether he fits into this Arsenal side.