Jan 27, 2023
Anyone buying chemistry NCERT (part 2 particularly) for class 12, please ensure you get the latest version as there are some differences in the previous (2018) version and the latest one. In the chapter Polymers, specifically, there are many differences between the 2018 version and the latest version (I have linked the two files, and you can start noticing differences in the first two pages only)
I don’t think the content, or the crux of the content, would be very different, but it is always better if you can get your hands on the latest version.