Chemistry Which of the following metals is not a pollutant ? Mercury Aluminium Lead Arsenic Mercury Aluminium Lead Arsenic ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that usually causes explosions in coal mines is Carbon monoxide Hydrogen Air Methane Carbon monoxide Hydrogen Air Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The luster of a metal is due to its chemical inertness its high polishing its high density presence of free electrons its chemical inertness its high polishing its high density presence of free electrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry A powerful eye irritant present in smog is Carbon dioxide Sulphur dioxide Peroxyacetyl nitrate Nitric oxide Carbon dioxide Sulphur dioxide Peroxyacetyl nitrate Nitric oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium is produced by the electrolysis of Molten sodium carbonate Molten sodium chloride Its cyanide complex Aqueous brine solution Molten sodium carbonate Molten sodium chloride Its cyanide complex Aqueous brine solution ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between 10 and 20 km 5 and 10 km 50 and 100 km 20 and 50 km 10 and 20 km 5 and 10 km 50 and 100 km 20 and 50 km ANSWER DOWNLOAD EXAMIANS APP
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