TY - BOOK TI - Chemistry: Textbook for class x1 SN - 817450494 U1 - 540 N 21338 C PY - 0000///Nodia CY - 2006 PB - National council of educational research and training KW - Chemistry N1 - Chemistry deals with the composition, structure and properties of matter; Importance of chemistry Nature of matter Properties of matter and their measurement ER -