IN JEE MAIN BICYCLO AND SPIRO ARE ASKING........ OR IMPORTANT ??????????
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Your question is not very clear. Kindly tell as to what do you exactly want to know.
However,I am giving you a rough idea. In JEE Mains,the questions come from the syllabus of Class 11 and 12 Physics,Chemistry and Biology.
You can follow the link given below for detailed information about the important chapters:
https://engineering.careers360.com/articles/jee-main-syllabus-weightage
Hope this helps.
Good luck.
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