Hii..

As you asking about marking scheme for Chemistry in Physics chapters for JAC Board .. but as you didn't mention here about your class and assuming that you are in class 12th so marking scheme in JAC Board is like every correct kind question answers awarded marks mentioned in the question paper and for the subject like physics chemistry and maths and other subjects like accounts step marking are there so if you answer is wrong then . You will get some marks on the basis of a step marking..

All the best!!