Important Questions for CBSE Class 10 Chemistry: ... units where the first four chapters are from Chemistry. Unit I: Chemical Substances ... exothermic reactions, oxidation and reduction. ...

NCERT Class 10 Science Chapter 1 Intext Question Answer Page Number 10 A solution of a substance ‘X’ is used for whitewashing. (i) Name the substance ‘X’ and write its formula.

GCSE Chemistry (Single Science) Unit 2: Further chemical reactions, rates and equilibrium, calculations and organic chemistry learning resources for adults, children, parents and teachers.