Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Noble gases Heavy metals Halogens Light metals Noble gases Heavy metals Halogens Light metals ANSWER DOWNLOAD EXAMIANS APP
Chemistry A polymeric substance used to make parachute is Terylene Viscose Rayon Cotton Terylene Viscose Rayon Cotton ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore magnetite consists of 3Fe2O3 .. 3H2O FeCO3 Fe3OH4 Fe2O3 3Fe2O3 .. 3H2O FeCO3 Fe3OH4 Fe2O3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry An inert gas mixed with oxygen given to patients suffering from restricted breathing is Helium Krypton Radon Argon Helium Krypton Radon Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gold dissolves in Aqua-regia Hydrochloric acid Acetic acid Nitric acid Aqua-regia Hydrochloric acid Acetic acid Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical formula of washing soda is NaHCO3 Na2CO3.10H2O Na2SO4.10H2O Ca(OH)2 NaHCO3 Na2CO3.10H2O Na2SO4.10H2O Ca(OH)2 ANSWER DOWNLOAD EXAMIANS APP
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