Chemistry The number of waves in n x 10th Bohr's orbit are n2 n n-2 n3 n2 n n-2 n3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to remove ink and rust stains on cloth? Oxalic acid Ether Alcohol Kerosene oil Oxalic acid Ether Alcohol Kerosene oil ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used for refrigeration? Sulphur dioxide Phosphine Chlorine Freon Sulphur dioxide Phosphine Chlorine Freon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main pollutants released from iron and steel industry are CO, CO2 and SO2 CO2, H2S and NO2 NO, SO3 and H2S CO2, NO2 and SO3 CO, CO2 and SO2 CO2, H2S and NO2 NO, SO3 and H2S CO2, NO2 and SO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Manganese Magnesium Calcium None of these Manganese Magnesium Calcium None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is found in all organic compounds Calcium Oxygen Carbon Nitrogen Calcium Oxygen Carbon Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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