Chemistry Which of the following metals is not a pollutant ? Mercury Arsenic Aluminium Lead Mercury Arsenic Aluminium Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following appeared to be with a significant potential for accumulation through food chains ? Parathion Carbary Lindane DDT Parathion Carbary Lindane DDT ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number of an atom gives the number of which of the following ? Neutrons and protons Electrons Protons Neutrons Neutrons and protons Electrons Protons Neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals is used in Space Crafts to withstand high temperatures ? Pb Ti Ni Fe Pb Ti Ni Fe ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Sulphur dioxide Carbon dioxide Nitrous oxide Hydrocarbons Sulphur dioxide Carbon dioxide Nitrous oxide Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry How many electrons in a Hydrogen atom One Three Two Four One Three Two Four ANSWER DOWNLOAD EXAMIANS APP
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