9th Class Guess Paper of Chemistry
Chemistry 9th Ch.1 and 7 complete. Discovery of electron, rutherford
atomic model, Bohr's theory, ionization energy, electron affinity,
electro negativity. ionic bond, types of covalent bond, Hydrogen
bonding, metals. Boyle,s and Charles law. Boiling pt.diffusion,
allotropy. Solubility. Colloid ,solution and suspension. Chemical
properties of alkali and
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