Chemistry The third shell of an atom can have a maximum of ______ electrons 18 21 15 13 18 21 15 13 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Magnetite is FeCO3 2Fe2O3. 3H2O Fe2O3 Fe3O4 FeCO3 2Fe2O3. 3H2O Fe2O3 Fe3O4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The polymerisation of which often following is used in manufacturing of polythene in industry ? Acetylene Ethylene Styrene Methane Acetylene Ethylene Styrene Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The reaction intermediate formed during the preparation of diethylether from ethanol by treatment with H2SO4 is Carbocation Carbene Free radical Carbanion Carbocation Carbene Free radical Carbanion ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is commonly used for pulp bleaching in the paper industry? Iodine and water Mild sulphuric acid Glucose isomerase Hydrogen peroxide Iodine and water Mild sulphuric acid Glucose isomerase Hydrogen peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is used to dilute oxygen in the gas cylinders used by divers ? Krypton Helium Argon Neon Krypton Helium Argon Neon ANSWER DOWNLOAD EXAMIANS APP
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