9th Class Chemistry Past Paper MCQS 2018 Group 1 Test Lahore Board

formula-of-rust-is-3-a_-_fe-3-csub-3-e-2-3-c-2-fsub-3-eo-3-csub-3-e-3-3-c-2-fsub-3-e-e-2-80-a-2-n-h-3-csub-3-e-2-3-c-2-fsub-3-eo,methane-is-an-example-of-3-a_-_single-covalent-bond,sub-shell-60-p-27-can-have-maximum-number-of-electrons-3-a_-_6,the-base-of-modern-periodic-table-is-3-a_-_atomic-number,the-boiling-point-of-sodium-chloride-is-3-a_-_1413-c-2-b-0-c,the-electronegativity-of-fluorine-is-3-a_-_4,the-example-of-solution-of-a-solid-solute-in-a-solid-solvent-is-3-a_-_brass,the-heaviest-metal-is-3-a_-_osmium,the-most-common-example-2-cof-corrosion-is-3-a_-_rusting-of-iron,which-device-is-used-to-measure-atmospheric-pressure-3-a_-_barometer,which-one-of-the-following-element-is-found-in-much-abundance-in-earth-27-s-crust-3-a_-_oxygen,which-pair-of-compounds-is-soluble-3-a_-_k-cl-and-water