Chemistry Acid rain' is caused due to air - pollution by Nitrous oxide and sulphur dioxide Carbon dioxide Methane Carbon monoxide Nitrous oxide and sulphur dioxide Carbon dioxide Methane Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is a Insulator Semiconductor Nonconductor Conductor Insulator Semiconductor Nonconductor Conductor ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which is mainly responsible for the green house effect is: Oxygen Carbon dioxide Carbon monoxide Ozone Oxygen Carbon dioxide Carbon monoxide Ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who first published the periodic table John Dalton Julius Lothar Meyer Henry Moseley Dmitri Mendeleev John Dalton Julius Lothar Meyer Henry Moseley Dmitri Mendeleev ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bayer's reagent is Hydrogen peroxide Alkaline potassium permanganate Acidified potassium permanganate Bromine water Hydrogen peroxide Alkaline potassium permanganate Acidified potassium permanganate Bromine water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a man-made source of air pollution ? Automobile exhaust Bacterial action in soil and swamp areas Forest fire All of these Automobile exhaust Bacterial action in soil and swamp areas Forest fire All of these ANSWER DOWNLOAD EXAMIANS APP
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