Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water None of these Magnesium Manganese Calcium None of these Magnesium Manganese Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Maximum permissible concentration of total hardness in drinking water is 200 100 50 500 200 100 50 500 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The buffer action of blood is due to the presence of CI– and [HCO3]– [HCO3]– and H2CO3 HCI and NaCI CI– and [CO3]2– CI– and [HCO3]– [HCO3]– and H2CO3 HCI and NaCI CI– and [CO3]2– ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major component in the LPG is Butane Propane Methane Ethane Butane Propane Methane Ethane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The green colour seen in firework displays is due to the chloride salt of : Barium Strontium Sodium Calcium Barium Strontium Sodium Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry KMnO4 can be used as Insecticide Fertilizer Disinfectant Pesticide Insecticide Fertilizer Disinfectant Pesticide ANSWER DOWNLOAD EXAMIANS APP