Dear Aspirant,

As you aware of the JEE Mains 2022 syllabus,then you got a clear view on your doubt related to this.According to past years papers,the weightage of questions is almost same from both the classes i.e.Class 11 and Class 12.As class 11 syllabus consists of more basic knowledege so,sometimes questions came from class 12 but related to basic concept of class 11.So,if you want to start your preprations with respecg to class 11 and class 12 syllabus forget about that.You if want go according to chapters wise some from class 11 and some from class 12 which consists of marks then go according to this plan.

You may also vist the link mentioned below to know more about the topics and syllabus and marks consists by them

https://engineering.careers360.com/articles/jee-main-syllabus-weightage

Hope this above information helps to solve your queries regarding this.

Have a good day and great future ahead...