Chemistry The purest form of Iron is : Cast iron Steel Wrought iron Pig iron Cast iron Steel Wrought iron Pig iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Phosphorous, Sodium and Nitrogen Calcium, Phosphorous and Potassium Nitrogen, Potassium and Phosphorous Sulphur, Phosphorous and Sodium Phosphorous, Sodium and Nitrogen Calcium, Phosphorous and Potassium Nitrogen, Potassium and Phosphorous Sulphur, Phosphorous and Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Atomic theory' of matter was given by Avogadro Dalton Newton Pascal Avogadro Dalton Newton Pascal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Have negative charge Experience collision less frequently Are lighter Need less energy to move them Have negative charge Experience collision less frequently Are lighter Need less energy to move them ANSWER DOWNLOAD EXAMIANS APP
Chemistry Main pollutants released from iron and steel industry are CO, CO2 and SO2 CO2, NO2 and SO3 CO2, H2S and NO2 NO, SO3 and H2S CO, CO2 and SO2 CO2, NO2 and SO3 CO2, H2S and NO2 NO, SO3 and H2S ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following alkali metals has highest specific heat? Potassium Rubidium Caesium Lithium Potassium Rubidium Caesium Lithium ANSWER DOWNLOAD EXAMIANS APP
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