Here are the most important topics for the FBISE Class 10 Chemistry exam, compiled from PkNotes as a guess paper. Focus on key concepts like acids and bases, salt formation, combustion, and halogenation of alkenes. Don’t miss the Solvay process and the distinction between soft and hard water with hardness removal methods. Practice calculating equilibrium constant () and mastering pH and pOH numericals. Study organic compound classification, acid rain effects, and functional groups, including IUPAC naming. Also, prepare for tests like the Baeyer and bromine water tests, air pollution sources, and concentration methods. Mastering these topics ensures exam success!