Chemistry Chemical properties of isotopes Need not be different Must be different Need not be same Must be same Need not be different Must be different Need not be same Must be same ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.658 0.305 0.727 0.509 0.658 0.305 0.727 0.509 ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to SO2 NO2 N2O SO3 SO2 NO2 N2O SO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of Cobalt in Vitamin B12 was established for the first time by Spectroscopy Sodium Nitroprusside test Hydrolysis test Borax-Bead test Spectroscopy Sodium Nitroprusside test Hydrolysis test Borax-Bead test ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant metal in the Earth’s crust is Aluminium Copper Iron Zinc Aluminium Copper Iron Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tear gas used by the police to disperse the mob contains Hydrogen sulphide Chlorine Carbon dioxide Ammonia Hydrogen sulphide Chlorine Carbon dioxide Ammonia ANSWER DOWNLOAD EXAMIANS APP
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