Chemistry Magnetite is Fe2O3 2Fe2O3. 3H2O FeCO3 Fe3O4 Fe2O3 2Fe2O3. 3H2O FeCO3 Fe3O4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet radiation striking the earth is due to the depletion of Carbon monoxide Oxygen Ozone Carbon dioxide Carbon monoxide Oxygen Ozone Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents clean surfaces on the principle of Elasticity Surface tension Viscosity Floatation Elasticity Surface tension Viscosity Floatation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements in the modern Periodic table are arranged according to their Atomic Weight Neutron number Mass number Atomic number Atomic Weight Neutron number Mass number Atomic number ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of an atom consists of electrons and neutrons protons and neutrons All of these electrons and protons electrons and neutrons protons and neutrons All of these electrons and protons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Coal is formed from Coke Compressed and hardened biomass Crude oil Deposit of animal waste Coke Compressed and hardened biomass Crude oil Deposit of animal waste ANSWER DOWNLOAD EXAMIANS APP
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