Chemistry The third shell of an atom can have a maximum of ______ electrons 18 13 15 21 18 13 15 21 ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following ions , the colour is not due to d-d transition ? [CrO4]2− [Cu(NH3)4]2+ [Ti(H2O)6]3+ [CoF6]3+ [CrO4]2− [Cu(NH3)4]2+ [Ti(H2O)6]3+ [CoF6]3+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is secondary air pollutant ? SO2 Photochemical smog Dust particles NO2 SO2 Photochemical smog Dust particles NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Carbonates from soil Water Carbon dioxide Oxides of mineral elements Carbonates from soil Water Carbon dioxide Oxides of mineral elements ANSWER DOWNLOAD EXAMIANS APP
Chemistry Adding Cl2 to benzene in the presence of AlCl3 is an example of : Elimination reaction Substitution reaction Addition reaction None of the options Elimination reaction Substitution reaction Addition reaction None of the options ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is methane oxygen ozone helium methane oxygen ozone helium ANSWER DOWNLOAD EXAMIANS APP
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