Chemistry Major portion of the earth’s crust is mainly constituted by Oxygen and Silicon Silicon and Iron Oxygen and Iron Silicon and Aluminium Oxygen and Silicon Silicon and Iron Oxygen and Iron Silicon and Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as anesthetic ? NO NH3 N2O NO2 NO NH3 N2O NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highest percentage of carbon is found in which form of coal? Bituminous Anthracite Peat Lignite Bituminous Anthracite Peat Lignite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Food cans are coated with tin and not with zinc because Zinc is less reactive than tin Zinc is costlier than tin Zinc has a higher melting point than tin Zinc is more reactive than tin Zinc is less reactive than tin Zinc is costlier than tin Zinc has a higher melting point than tin Zinc is more reactive than tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Biofertilizers convert nitrogen to ________ . Ammonia Amino acids Nitrogenase Nitrates Ammonia Amino acids Nitrogenase Nitrates ANSWER DOWNLOAD EXAMIANS APP
Chemistry Peroxyacetyl nitrate is a Plant hormone Vitamin Acidic dye Secondary pollutant Plant hormone Vitamin Acidic dye Secondary pollutant ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS