右图为用高锰酸钾制取氧气的装置,指出装置错误的部分并改正:
![](https://media.youtike.com//ques/201211/14/91ec88a9-56ba-4247-973b-d4edbf1869d3/image001.png)
①___________________________________________________
②___________________________________________________
③___________________________________________________
④___________________________________________________⑤___________________________________________________
⑥___________________________________________________