Chemistry Which type of radiations are absorbed by the upper layer of the atmosphere? Ultraviolet Visible Infrared Radio-waves Ultraviolet Visible Infrared Radio-waves ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silicon is a Semiconductor Insulator Conductor Nonconductor Semiconductor Insulator Conductor Nonconductor ANSWER DOWNLOAD EXAMIANS APP
Chemistry If water smells bad, then that odour can be removed by adding Deactivated nitrogen Activated carbon Alum Bleach Deactivated nitrogen Activated carbon Alum Bleach ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Tritium Radium Carbon-14 Phosphorus-31 Tritium Radium Carbon-14 Phosphorus-31 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most commonly used bleaching agent is Sodium chloride Carbon dioxide Chlorine Alcohol Sodium chloride Carbon dioxide Chlorine Alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Biofertilizers convert nitrogen to ________ . Nitrogenase Nitrates Amino acids Ammonia Nitrogenase Nitrates Amino acids Ammonia ANSWER DOWNLOAD EXAMIANS APP
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