Chemistry Copper substances when exposed to air gains a green coating due to the formation of: Cu(NO3)2 CuSO4 CuO CuCO3 Cu(OH)2 Cu(NO3)2 CuSO4 CuO CuCO3 Cu(OH)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a chemical reaction'? Conversion of water into steam Burning of coal Burning of paper Digestion of food Conversion of water into steam Burning of coal Burning of paper Digestion of food ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element has the lowest electronegativity value Fluorine Chlorine Radium Francium Fluorine Chlorine Radium Francium ANSWER DOWNLOAD EXAMIANS APP
Chemistry An emulsion is a colloidal solution of Gas in solid Solid in liquid Liquid in liquid Solid in Solid Gas in solid Solid in liquid Liquid in liquid Solid in Solid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas liberated in the Bhopal gas tragedy was: Methyl isocynate Acetylene Ethylene Pheynl isocynate Methyl isocynate Acetylene Ethylene Pheynl isocynate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which substance is used to retard the setting action of cement? CaSO4, 2H2O Al2O3 Na2O + K2O CaO CaSO4, 2H2O Al2O3 Na2O + K2O CaO ANSWER DOWNLOAD EXAMIANS APP
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