Chemistry The natural source of hydro-carbon is Biomass Coal Crude oil Carbohydrates Biomass Coal Crude oil Carbohydrates ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for filling weather balloons is Air Helium Hydrogen Nitrogen Air Helium Hydrogen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in embalming biological materials is Formaldehyde in methanol Ethylene glycol Gaseous formaldehyde Formaldehyde in water Formaldehyde in methanol Ethylene glycol Gaseous formaldehyde Formaldehyde in water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical formula of the laughing gas is NO N2O3 N2O NO2 NO N2O3 N2O NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number is the number equal to Protons Electrons Neutrons None of these Protons Electrons Neutrons None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a natural source of hydrocarbon? Mica Natural Gas Petroleum Coal Mica Natural Gas Petroleum Coal ANSWER DOWNLOAD EXAMIANS APP
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