Chemistry The method of concentrating the ore which makes use of the difference in density between ore and impurities is called leaching liquation levigation magnetic separation leaching liquation levigation magnetic separation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is an example of noble gas ? Hydrogen Chlorine Nitrogen Helium Hydrogen Chlorine Nitrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is commonly used for pulp bleaching in the paper industry? Mild sulphuric acid Hydrogen peroxide Iodine and water Glucose isomerase Mild sulphuric acid Hydrogen peroxide Iodine and water Glucose isomerase ANSWER DOWNLOAD EXAMIANS APP
Chemistry The addition of gypsum to portland cement helps in : Preventing rapid setting of cement Rapid setting of cement Reduction in the cost of cement Increasing the strength of cement Preventing rapid setting of cement Rapid setting of cement Reduction in the cost of cement Increasing the strength of cement ANSWER DOWNLOAD EXAMIANS APP
Chemistry The hottest part of the gas flame is known as luminous zone blue zone non-luminous zone dark zone luminous zone blue zone non-luminous zone dark zone ANSWER DOWNLOAD EXAMIANS APP
Chemistry One property of ammonia is It is insoluble in water Its aqueous solution turns red litmus blue It is a odourless gas It is a yellowish gas It is insoluble in water Its aqueous solution turns red litmus blue It is a odourless gas It is a yellowish gas ANSWER DOWNLOAD EXAMIANS APP
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