ECAT Chemistry MCQS Environmental Chemistry Online Test

a-single-chloride-free-radical-can-destroy-how-many-ozone-molecules-3-f_-_100-2-c-000,ecosystem-is-a-smaller-unit-of_-_biosphere,ecosystem-is-smaller-unit-of_-_biosphere,fungicides-are-the-pesticides-which-3-a_-_control-the-growth-of-fungus,hard-water-contains-3-a_-_ca-and-mg-salts,in-purification-of-portable-water-the-coagulant-used-is-3-a_-_alum,in-water-the-concentration-of-dissolved-o-3-csub-3-e-2-3-c-2-fsub-3-e-should-be-3-a_-_4-8-ppm,newspaper-can-be-recycled-again-and-again-by-how-many-times-3-f_-_5,oxidation-of-no-in-air-produces_-_no-3-csub-3-e-2-3-c-2-fsub-3-e,peroxyacetylnitrate-28-pan-29-is-an-irritant-to-human-beings-and-it-affects-3-a_-_eyes,the-main-pollutant-of-leather-tanneries-in-the-waste-water-is-due-the-salt-of-3-a_-_chromium-28-vi-29,the-news-paper-can-be-recycled-again-and-again-as-many-times-as-3-a_-_5,the-p-h-of-truly-acidic-rain-is-3-a_-_less-than-5,the-p-h-of-unpolluted-rain-water-should-be_-_5-6,the-p-h-range-of-the-acid-rain-is-3-a_-_6-5-6,the-temperature-in-the-incineration-of-industrial-and-hazardous-waste-process-has-a-range_-_950-to-1300-c-2-b-0-c,thickness-of-atmosphere-is-about-how-much-kilometer-above-the-surface-of-earth_-_1000-km,water-is-disinfected-by-a-substance-to-avoid-toxification-3-a_-_ci-3-csub-3-e-2-3-c-2-fsub-3-e,which-is-a-secondary-pollutant-3-f_-_carbonic-acid