9th Class Chemistry Past Paper MCQS 2013 Group 2 Test Lahore Board

brass-ia-an-example-of-solution_-_solid-in-soild,melting-point-of-sodium-is-3-a_-_97-c-2-b-0-c,mendeleev-27-s-perodic-table-was-based-upon_-_atomic-mass,the-concept-of-orbit-was-introduced-by_-_bohr,the-density-of-water-is_-_1-00-g-cm-3-csup-3-e-3-3-c-2-fsup-3-e,the-mass-of-an-electron-is-3-a_-_1-672-x-10-3-csup-3-e-24-3-c-2-fsup-3-e-kg,the-number-of-isotopes-of-carbon-are-3-a_-_3,the-oxidation-number-chlorine-in-k-cl-o-3-csub-3-e-3-3-c-2-fsub-3-e-3-a_-_5,the-oxidation-number-chlorine-in-nho-3-csub-3-e-3-3-c-2-fsub-3-e_-_5,which-one-is-the-non-polar-molecule-among-these-3-f_-_h-3-csub-3-e-2-3-c-2-fsub-3-e,which-one-of-the-following-is-a-not-amorphous-solids-3-f_-_plastic,which-thing-is-a-solution-of-gas-in-gas-3-f_-_air