Chemistry Zone refining is used for the purification of Cu Au Ge Ag Cu Au Ge Ag ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a metallic ore ? Quartz Mica Feldspar Galena Quartz Mica Feldspar Galena ANSWER DOWNLOAD EXAMIANS APP
Chemistry J.J. Thomson’s proposed model of atom is generally called ________ model. Cream and pudding Plum and cake Plum and pudding Cream and cake Cream and pudding Plum and cake Plum and pudding Cream and cake ANSWER DOWNLOAD EXAMIANS APP
Chemistry If lime water is kept in the air, it turns milky due to presence of : Carbondioxide Oxygen Sulphurdioxide Nitrogen Carbondioxide Oxygen Sulphurdioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Photo chemical smog is a resultant of the reaction among CO, O2 and peroxy acetyl nitrate in the presence of Sunlight NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight CO, CO2 and NO2at low temperature High concentration of NO2, O3, and CO in the evening CO, O2 and peroxy acetyl nitrate in the presence of Sunlight NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight CO, CO2 and NO2at low temperature High concentration of NO2, O3, and CO in the evening ANSWER DOWNLOAD EXAMIANS APP
Chemistry The inexpensive and commonly used variety of glass is called soda glass. was used initially for making bottles of soda(carbonated drink) is made using soda lime was initially used for storing sodium carbonate is made using soda(sodium carbonate) was used initially for making bottles of soda(carbonated drink) is made using soda lime was initially used for storing sodium carbonate is made using soda(sodium carbonate) ANSWER DOWNLOAD EXAMIANS APP
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