Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Light metals Halogens Noble gases Heavy metals Light metals Halogens Noble gases Heavy metals ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of replenishable energy source is– Lignite Biomass Petroleum Coal Lignite Biomass Petroleum Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one amongst the following is not a Green House gas? Chloro fluoro carbons Carbon Monoxide Nitrogen Carbon dioxide Chloro fluoro carbons Carbon Monoxide Nitrogen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ? Acidity Eutrophication Hardness Alkalinity Acidity Eutrophication Hardness Alkalinity ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of Iron is : Wrought iron Pig iron Steel Cast iron Wrought iron Pig iron Steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of biogas is Methyl alcohol Methane Acetic acid Oxygen Methyl alcohol Methane Acetic acid Oxygen ANSWER DOWNLOAD EXAMIANS APP
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