10th Class Chemistry MCQS Hydrocarbons Online Test 3

3-cp-3-e-which-disease-cause-when-humans-use-water-of-industrial-effuents-3-f-3-c-2-fp-3-e_-_3-cp-3-e-cancer-3-c-2-fp-3-e,3-cp-3-e-which-gas-is-produced-by-the-bacterial-decay-of-vegetables-matter-3-f-3-c-2-fp-3-e_-_3-cp-3-e-marsh-gas-3-c-2-fp-3-e,3-cp-3-e-which-gas-saves-the-surface-of-earth-from-ultraviolet-radiation-3-f-3-c-2-fp-3-e_-_3-cp-3-eo-3-csub-3-e-3-3-c-2-fsub-3-e-3-c-2-fp-3-e,3-cp-3-e-which-one-of-the-following-work-as-messenger-3-f-3-c-2-fp-3-e_-_3-cp-3-erna-3-c-2-fp-3-e,3-cp-3-e-which-vitamin-is-soluble-in-water-3-f-3-c-2-fp-3-e_-_3-cp-3-e-vitamin-c-3-c-2-fp-3-e,3-cp-3-ep-h-c-2-a-0-of-rain-water-is-3-a-3-c-2-fp-3-e_-_3-cp-3-e-6-6-5-3-c-2-fp-3-e,by-which-process-alkene-is-prepared-from-alcohol-3-a_-_dehydro-halogenation,catalyst-used-for-hydrogenation-of-ethane-is-3-a_-_ni,dehydration-of-alcohols-can-be-carried-out-with_-_h-3-csub-3-e-2-3-c-2-fsub-3-eso-3-csub-3-e-4-3-c-2-fsub-3-e,dehydro-halogenations-of-vicinal-dihalides-takes-place-in-the-presence-of-3-a_-_alcoholic-koh,dehydro-halogenations-takes-place-in-the-presence-of-3-a_-_koh-alcoholic,ethylene-glycol-can-be-prepared-by-reacting-k-mn-o-3-csub-3-e-4-3-c-2-fsub-3-e-with-3-a_-_ch-3-csub-3-e-2-3-c-2-fsub-3-e-3-dch-3-csub-3-e-2-3-c-2-fsub-3-e