Chemistry The iron ore magnetite consists of Fe3OH4 3Fe2O3 .. 3H2O FeCO3 Fe2O3 Fe3OH4 3Fe2O3 .. 3H2O FeCO3 Fe2O3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals is used to galvanise iron ? Zinc Copper Lead Mercury Zinc Copper Lead Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conversion of chemical energy into electrical energy occurs in Dynamo Electric heaters Atomic bombs A battery Dynamo Electric heaters Atomic bombs A battery ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Atomic theory' of matter was given by Avogadro Newton Pascal Dalton Avogadro Newton Pascal Dalton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a nucleon? Neutron Electron Proton Positron Neutron Electron Proton Positron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is non-radioactive ? Plutonium Thorium Zirconium Uranium Plutonium Thorium Zirconium Uranium ANSWER DOWNLOAD EXAMIANS APP