Does the questioner want to ask "Which floor is the entrance to Terminal 2 of Xinzheng Airport on?"

Second floor.

According to the information on the official website of Zhengzhou Xinzheng International Airport, the T2 terminal of Zhengzhou Xinzheng International Airport has two floors. The second floor is the entrance for departing flights, and the first floor is the exit for arriving flights, so the entrance is on the third floor.

Second floor.