Chemistry Which one of the following is a micro-element ? Oxygen Hydrogen Chlorine Nitrogen Oxygen Hydrogen Chlorine Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Peroxyacetyl nitrate is a Secondary pollutant Vitamin Plant hormone Acidic dye Secondary pollutant Vitamin Plant hormone Acidic dye ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chile saltpeter is the common name of: Sodium nitrite Potassium nitrate Sodium nitrate Potassium nitrite Sodium nitrite Potassium nitrate Sodium nitrate Potassium nitrite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hardness of the water is commonly measured in terms of Calcium carbonate equivalents Magnesium carbonate equivalents Magnesium sulphate equivalents Calcium sulphate equivalents Calcium carbonate equivalents Magnesium carbonate equivalents Magnesium sulphate equivalents Calcium sulphate equivalents ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which substance is used to retard the setting action of cement? CaSO4, 2H2O CaO Al2O3 Na2O + K2O CaSO4, 2H2O CaO Al2O3 Na2O + K2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water gas is the mixture of Carbon dioxide and hydrogen Carbon monoxide and nitrogen Carbon monoxide and hydrogen Carbon dioxide and nitrogen Carbon dioxide and hydrogen Carbon monoxide and nitrogen Carbon monoxide and hydrogen Carbon dioxide and nitrogen ANSWER DOWNLOAD EXAMIANS APP
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