Chemistry The iron ore magnetite consists of FeCO3 Fe2O3 3Fe2O3 .. 3H2O Fe3OH4 FeCO3 Fe2O3 3Fe2O3 .. 3H2O Fe3OH4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents clean surfaces on the principle of Viscosity Floatation Surface tension Elasticity Viscosity Floatation Surface tension Elasticity ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of halogen elements found in the periodic table is 3 13 5 8 3 13 5 8 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a chemical reaction'? Burning of paper Digestion of food Conversion of water into steam Burning of coal Burning of paper Digestion of food Conversion of water into steam Burning of coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following states maximum iron ore is found ? Fe3O4 FeCO3 Fe2O3 FeS2 Fe3O4 FeCO3 Fe2O3 FeS2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Supersonic jet causes pollution by thinning of O3 layer O 2 layer SO2 layer CO2 layer O3 layer O 2 layer SO2 layer CO2 layer ANSWER DOWNLOAD EXAMIANS APP
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