He hasn't...Sasuke dropped out of the Ninja Leveling System as a Genin and joined Orochimaru, now he has the abilities of a Special Jonin, which is just below Kage title.
You have to become a Chuunin.
Rock Lee is stronger than Sasuke for a limited amount of time in the chuunin exams. After that, Sasuke is always much stronger.
Sasuke gets bitten on the neck by Orochimaru before the Chuunin Preliminary rounds.
no his going to be a jounin
So far, no
He hasn't become a Chuunin yet; he is still a genin, though his abilities prove otherwise. This is due to the fact that while training with Jiraiya during the timeskip, he missed the Chuunin exams. Also, he failed to become a Chuunin during the pre-Shippuden anime series.
In Naruto Shippuden, Tenten is a Chuunin. Not a Jonin. The only new Jonin in Shippuden are Temari, Kankuro, and Neji.
He failed the chuunin exams the first time and afterwards he didn't because he was traveling with ero-sensei for 2 1/2 years when everyone else became a chuunin.
Right now Naruto has been busy with other things like controlling the Kyubbi, the Ninja War going on, Tobi/Madara problems, and the issue with Sasuke still. He isn't worried right now about becoming Chuunin. In everyone's eyes Naruto is a Chunnin and maybe even more. He has done so much for the village and for lots of other people that he's met.
Itis a new ninja and starting rank. in lv20 you can do Chuunin Exam and become a higher ranked ninja called Chuunin,then is Joujin Exam at lv40.
Sakura Haruno is a pink-haired kunoichi from the hit anime series Naruto. Her highest ninja rank during the show is chuunin.
Win battles often and level up. That's all there is to it.