Dear Aspirant,

For physics, chemistry, biology, mathematics many chapters in 12 th are the bases which you are doing since the school in Maharashtra Board

There are new chapters like thermodynamics, animal tissues, surface tension, semi conductors,polymers, and many such which are completely new

So for 12 th science it's not only 11 th but whatever you have learnt since school in PCMB is the base and you get deeper knowledge in 12 th PCMB especially Maharashtra Board

For more information do visit

https://www.google.com/amp/s/school.careers360.com/articles/maharashtra-hsc-syllabus/amp

Hope this helps