Chemistry Greenhouse effect is caused by Carbon dioxide Nitrogen Nitrogen dioxide Carbon monoxide Carbon dioxide Nitrogen Nitrogen dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical name of vinegar is Acetic acid Formaldehyde Ethanol Acetone Acetic acid Formaldehyde Ethanol Acetone ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas that usually causes explosions in coal mines is Carbon monoxide Hydrogen Methane Air Carbon monoxide Hydrogen Methane Air ANSWER DOWNLOAD EXAMIANS APP
Chemistry Among the following, carbonate ore of Zinc is Zincite Sphalerite Calamine Zincblende Zincite Sphalerite Calamine Zincblende ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Sulphur dioxide Hydrocarbons Carbon dioxide Nitrous oxide Sulphur dioxide Hydrocarbons Carbon dioxide Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a monoatomic gas? Nitrogen Fluorine Oxygen Neon Nitrogen Fluorine Oxygen Neon ANSWER DOWNLOAD EXAMIANS APP
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