Chemistry The chief source for the production of nitrogeneous fertilizers is : Nitric acid Nitrogen dioxide Ammonia Nitrogen Nitric acid Nitrogen dioxide Ammonia Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pyrethrin used in mosquito coil is obtained from A seed plant A fungus An insect A bacterium A seed plant A fungus An insect A bacterium ANSWER DOWNLOAD EXAMIANS APP
Chemistry An important green-house gas other than methane being produced from the agricultural fields is Ammonia Nitrous oxide Arsine Sulphur dioxide Ammonia Nitrous oxide Arsine Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mercury is emitted into air by Steam engine Coal fire Burning garbage Burning coal Steam engine Coal fire Burning garbage Burning coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of ‘Common salt’ is Calcium chloride Sodium nitrate Sodium chloride Ammonium chloride Calcium chloride Sodium nitrate Sodium chloride Ammonium chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry The basic chemical building block of natural rubber obtained from trees is Isoprene Neoprene Vinyl Chloride Acetylene Isoprene Neoprene Vinyl Chloride Acetylene ANSWER DOWNLOAD EXAMIANS APP
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