Chemistry What is the element that is in the highest percentage in the composition of the earth ? Magnesium Silicon Iron Oxygen Magnesium Silicon Iron Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Biofertilizers convert nitrogen to ________ . Nitrogenase Ammonia Amino acids Nitrates Nitrogenase Ammonia Amino acids Nitrates ANSWER DOWNLOAD EXAMIANS APP
Chemistry Zone refining is used for the purification of Ag Ge Cu Au Ag Ge Cu Au ANSWER DOWNLOAD EXAMIANS APP
Chemistry The apparatus used to test acidity of aqueous solution is Ammeter Acidmeter Hygrometer PH meter Ammeter Acidmeter Hygrometer PH meter ANSWER DOWNLOAD EXAMIANS APP
Chemistry An oxidising agent is a In a chemical reaction its oxidation number increases An electron acceptor An electron donor It releases H2 in a chemical reaction In a chemical reaction its oxidation number increases An electron acceptor An electron donor It releases H2 in a chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Chemistry The important metal used with iron to produce stainless steel is Chromium Tin Aluminium Carbon Chromium Tin Aluminium Carbon ANSWER DOWNLOAD EXAMIANS APP
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