Chemistry Which among the following is found in chlorophyll ? Ca2+ Fe2+ Mg2+ A l3+ Ca2+ Fe2+ Mg2+ A l3+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance which does not expand on going from liquid state to solid state is Water Cast-iron Type metal Aluminium Water Cast-iron Type metal Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry In chemical terms, what are alums used for purifying water for drinking purposes ? Nitrates of aluminium Double nitrate Double sulphates Hydrated chlorides Nitrates of aluminium Double nitrate Double sulphates Hydrated chlorides ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of carbon in carbon dioxide (CO2) 0.201 0.158 0.323 0.273 0.201 0.158 0.323 0.273 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet rays can be used in water treatment as Hydrolyser Disinfectant Flocculator Precipitator Hydrolyser Disinfectant Flocculator Precipitator ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a ‘green house gas’ ? Methane Chlorofluorocarbons Carbon dioxide Nitrogen Methane Chlorofluorocarbons Carbon dioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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