With this article, you may download the NCERT Class 9 Science Chapter 3 Atoms and Molecules in PDF. You will get here the latest edition of the chapter that is available on the official website of ...
9. Molecular mass is defined as the: (a) Mass of one molecule of any substance compared with the mass of one atom of C – 12 (b) Mass of one atom compared with the mass of one atom of hydrogen (c) Mass ...
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