Chemistry Main source of lead pollution is from Tobacco Leaded gasoline Sewage Insecticides Tobacco Leaded gasoline Sewage Insecticides ANSWER DOWNLOAD EXAMIANS APP
Chemistry Zone refining is used for the purification of Ag Cu Au Ge Ag Cu Au Ge ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who developed the model of atomic structure ? Alfred Nobel Faraday Bohr and Rutherford Volta Alfred Nobel Faraday Bohr and Rutherford Volta ANSWER DOWNLOAD EXAMIANS APP
Chemistry The weight of 6.023 × 1022 atoms of carbon is 12 gms 0.12 gms 120 gms 1.2 gms 12 gms 0.12 gms 120 gms 1.2 gms ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals is not a pollutant ? Lead Mercury Arsenic Aluminium Lead Mercury Arsenic Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be 2 : 16 : 1 1 : 1 : 1 1 : 16 : 2 2 : 16 : 2 2 : 16 : 1 1 : 1 : 1 1 : 16 : 2 2 : 16 : 2 ANSWER DOWNLOAD EXAMIANS APP
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