Chemistry Catalytic converters are generally made from : Hydrogen Transition metals Alkaline metals Carbon Hydrogen Transition metals Alkaline metals Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most commonly used chemicals in the artificial rainmaking or cloud seeding are Sodium Chloride (NaCl) All of these Silver Iodide (Ag I) Dry Ice (Frozen CO2) Sodium Chloride (NaCl) All of these Silver Iodide (Ag I) Dry Ice (Frozen CO2) ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of biogas is Methyl alcohol Acetic acid Methane Oxygen Methyl alcohol Acetic acid Methane Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of elements in the Periodic table 118 127 115 112 118 127 115 112 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that usually causes explosions in coal mines is Air Methane Carbon monoxide Hydrogen Air Methane Carbon monoxide Hydrogen 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 : 2 1 : 1 : 1 2 : 16 : 1 1 : 16 : 2 2 : 16 : 2 1 : 1 : 1 2 : 16 : 1 1 : 16 : 2 ANSWER DOWNLOAD EXAMIANS APP
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