Chemistry Air shows the property of O2 Both A and B None of these N2 O2 Both A and B None of these N2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pyrethrin used in mosquito coil is obtained from A seed plant A bacterium An insect A fungus A seed plant A bacterium An insect A fungus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Biofertilizers convert nitrogen to ________ . Ammonia Nitrogenase Nitrates Amino acids Ammonia Nitrogenase Nitrates Amino acids ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brine refers to : Starch water Pure water Sweet water Salt water Starch water Pure water Sweet water Salt water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of halogen elements found in the periodic table is 8 5 3 13 8 5 3 13 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The working of a dry cell is based on Combination reaction Decomposition reaction Spontaneous oxidation-reduction reaction Electrolysis Combination reaction Decomposition reaction Spontaneous oxidation-reduction reaction Electrolysis ANSWER DOWNLOAD EXAMIANS APP
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