Chemistry Chemical formula of washing soda is Na2SO4.10H2O Ca(OH)2 Na2CO3.10H2O NaHCO3 Na2SO4.10H2O Ca(OH)2 Na2CO3.10H2O NaHCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who first published the periodic table John Dalton Dmitri Mendeleev Julius Lothar Meyer Henry Moseley John Dalton Dmitri Mendeleev Julius Lothar Meyer Henry Moseley ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Sulphur dioxide Nitrogen dioxide Methane Carbon monoxide Sulphur dioxide Nitrogen dioxide Methane Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry How many electrons in a Hydrogen atom Two Four Three One Two Four Three One ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of halogen elements found in the periodic table is 5 8 13 3 5 8 13 3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major constituent of gobar gas is Butane Carbon dioxide Methane Isobutane Butane Carbon dioxide Methane Isobutane ANSWER DOWNLOAD EXAMIANS APP
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