Imp. Ch.for PCM in 12th to score upto 80% in 12th board pls tell according to 2018 marking scheme.......
All The Chapter are important.
we can't tell,which chapter is important.
And you can't mention,which board are you.
but you prepare the previous year question papers and blue print is important.
The question will ask according to the blue print,it is useful for your examination.
don't be tensed.
Regards,
Rajdeep Sinha
Please explain for which board you are asking as there are many boards like CBSE, ICSC etc,