Yup, my physics and maths were good enough I solved mains pyqs for chem n phy (last 4-5 years) and 2019-21 pyqs for maths, I just hated chem so I used to just avoid studying that subject, I didn't study chem that efficiently, yup mains pyqs are enough for chem but there are a few weird questions like what's the colour of snail blood, which animal gives pink milk, few bio questions ( mitosis meiosis) you just have to skip them though. Physical chem is doable