12th Class Chemistry Past Paper MCQS 2013 Group 1 Test Lahore Board

acetamide-is-prepared-by-3-a_-_heating-ammonium-acetate,amongst-the-following-2-c-the-compound-that-can-be-most-readily-sulphonated-is-3-a_-_toluene,for-which-mechanisms-2-c-the-first-step-involved-is-the-same_-_e-3-csub-3-e-1-3-c-2-fsub-3-e-and-sn-3-csub-3-e-1-3-c-2-fsub-3-e,in-purification-of-portable-water-the-coagulant-used-is-3-a_-_alum,synthetic-rubber-is-made-by-polymerization-of_-_chloroprene,the-anhydride-of-h-cl-o-3-csub-3-e-4-3-c-2-fsub-3-e-is_-_cl-3-csub-3-e-2-3-c-2-fsub-3-eo-3-csub-3-e-7-3-c-2-fsub-3-e,when-sugar-is-treated-with-conc-h-3-csub-3-e-2-3-c-2-fsub-3-eso-3-csub-3-e-4-3-c-2-fsub-3-e-2-c-it-becomes-black-due-to-3-a_-_dehydration,which-compound-is-prepared-by-stadeler-27-s-process-3-f_-_k-mno-3-csub-3-e-4-3-c-2-fsub-3-e,which-compound-will-have-the-maximum-repulsion-with-water-3-f_-_c-3-csub-3-e-6-3-c-2-fsub-3-eh-3-csub-3-e-6-3-c-2-fsub-3-e,which-element-among-the-following-belongs-to-group-iv-a-of-the-periodic-table-3-a_-_lead,which-is-most-difficult-of-oxidize-3-a_-_ch-3-csub-3-e-3-3-c-2-fsub-3-ecoch-3-csub-3-e-3-3-c-2-fsub-3-e,which-of-the-following-enzymes-brings-about-the-hydrolysis-of-fats-3-f_-_lipase,which-of-the-following-sulphates-is-not-soluble-in-water-3-f_-_barium-sulphate,which-of-the-following-will-have-the-highest-boiling-point-3-f_-_2-hexanone,which-one-is-true-about-melting-points-of-halogens-3-f_-_increase-down-the-group,which-set-of-hybrid-orbital-has-planner-triangular-shape-3-f_-_sp-3-csup-3-e-2-3-c-2-fsup-3-e,which-woody-raw-material-is-used-for-the-manufacture-of-paper-pulp-3-f_-_poplar