For class 12th, blindly just go for NCERT!
You must’ve heard by many and so did I and have experienced it too. CBSE only and only focuses on class 12th NCERT For chemistry especially.
Go ahead by solving every single ncert questions and also the ‘In text questions ’ and then pick up last 10years chem board papers and solve them all!
Trust me, every single year the questions are repeated. And just don’t be lazy in doing all of these. Do it all thouroughly and you’d easily score as per your expectation.
Work hard, be thourough and make sure you understand every bit of NCERT.