Chemistry Zone refining is used for the purification of Au Ge Cu Ag Au Ge Cu Ag ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a metallic ore ? Galena Feldspar Mica Quartz Galena Feldspar Mica Quartz ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main buffer system of the human blood is H2CO3 - CO32- CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ H2CO3 - HCO3 H2CO3 - CO32- CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ H2CO3 - HCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver nitrate solution is kept in brown bottles in laboratory because Brown bottles stops the passage of light through it Brown bottles react with it It reacts with ordinary white bottles Brown bottles do not react with it Brown bottles stops the passage of light through it Brown bottles react with it It reacts with ordinary white bottles Brown bottles do not react with it ANSWER DOWNLOAD EXAMIANS APP
Chemistry One of the following is used to dissolve noble metals. That is Aqua ragia Nitric acid Sulphuric acid Hydrochloric acid Aqua ragia Nitric acid Sulphuric acid Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following substances all carbon atoms are quaternary in nature ? Diamond Napthalene Teflon Graphite Diamond Napthalene Teflon Graphite ANSWER DOWNLOAD EXAMIANS APP
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