Many "patched" PDFs floating online are actually old versions (2007-2015) with fake dates. The periodic table has changed (new elements: Nihonium, Moscovium, Tennessine, Oganesson). An old "patched" PDF will teach you the wrong symbols (Uub vs Nh). You will lose marks.
If you ignore all warnings and still search for a patched PDF, use these safety checks: ncert word to word inorganic chemistry pdf download patched
— applying this to a PDF usually means an illegally altered version, often containing errors, missing content, or malware. Many "patched" PDFs floating online are actually old