Chemistry The major constituent of air is nitrogen hydrogen carbon dioxide oxygen nitrogen hydrogen carbon dioxide oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief source for the production of nitrogeneous fertilizers is : Nitrogen Nitrogen dioxide Ammonia Nitric acid Nitrogen Nitrogen dioxide Ammonia Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Philosopher’s Wool is Zinc oxide Zinc sulphate Zinc carbonate Zinc blende Zinc oxide Zinc sulphate Zinc carbonate Zinc blende ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 B and c A and c C and d A and b B and c A and c C and d A and b ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of Iron is : Wrought iron Cast iron Steel Pig iron Wrought iron Cast iron Steel Pig iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Zinc sulphide is commonly used as Deodorant Rodenticide Fungicide Herbicide Deodorant Rodenticide Fungicide Herbicide ANSWER DOWNLOAD EXAMIANS APP
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