Chemistry The first metal used by a man was Copper Silver Bronze Brass Copper Silver Bronze Brass ANSWER DOWNLOAD EXAMIANS APP
Chemistry If the equilibrium constants for the systems H2 + I2 ? 2HI and 2HI ? H2 + I2 are K1 and K2 respectively, the relationship between K1 and K2 is : K 1 = 1 /K2 K1 = 2K2 K1 = K2 K1 = K2/2 K 1 = 1 /K2 K1 = 2K2 K1 = K2 K1 = K2/2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to NO2 N2O SO2 SO3 NO2 N2O SO2 SO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used for cloud seeding for artificial rains is Potassium Bromide Potassium Nitrate Silver Iodide Silver Nitrate Potassium Bromide Potassium Nitrate Silver Iodide Silver Nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Biofertilizers convert nitrogen to ________ . Amino acids Ammonia Nitrogenase Nitrates Amino acids Ammonia Nitrogenase Nitrates ANSWER DOWNLOAD EXAMIANS APP
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