Chemistry Threshold limit value of copper in the atmospheric air is 1.0 mg/m3 5.0 mg/m3 0.001 mg/m3 0.01 mg/m3 1.0 mg/m3 5.0 mg/m3 0.001 mg/m3 0.01 mg/m3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for artificial ripening of green fruit is ethane ethylene carbon dioxide acetylene ethane ethylene carbon dioxide acetylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following type of coal has the lowest proportion of volatile matter ? Lignite Anthracite Bituminous Peat Lignite Anthracite Bituminous Peat ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of improving the quality of rubber by heating it with sulphur is called. Vulcanization Sulphonation Acceleration Galvanization Vulcanization Sulphonation Acceleration Galvanization ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas dissolved in water that makes it basic is : Sulphur dioxide Ammonia Carbon dioxide Hydrogen Sulphur dioxide Ammonia Carbon dioxide Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ? There is a crackling sound The paper ignites There is no reaction. There is a violent explosion. There is a crackling sound The paper ignites There is no reaction. There is a violent explosion. ANSWER DOWNLOAD EXAMIANS APP
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