Chemistry Supersonic jet causes pollution by thinning of CO2 layer O 2 layer O3 layer SO2 layer CO2 layer O 2 layer O3 layer SO2 layer ANSWER DOWNLOAD EXAMIANS APP
Chemistry Match the List-I with List-II and select the correct answer using the codes given below the listsList-I (Green house gas)List-II(Major source)F.Carbondioxide1.Enteric fermentation in cattleG.Methane2.Burning of fossilH.Chloroflro carbons3.Mercury compounds in waste waterJ.Nitrous oxide4.Nylon production 5.Air conditioner and refrigeration unitsCodes :FGHJA.2154B.3421C.3241D.1234 C B A D C B A D ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 12 Zero 6 18 12 Zero 6 18 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The monomer of polythene is ethyl alcohol ethylene None of these vinyl chloride ethyl alcohol ethylene None of these vinyl chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry The function of sedimentation tank in sewage treatment is to: Remove suspended solids Aerate the sewage Remove water content Disinfect the sewage Remove suspended solids Aerate the sewage Remove water content Disinfect the sewage ANSWER DOWNLOAD EXAMIANS APP
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