Chemistry The three elements most needed in common fertilisers are : Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Periodic table contains how many groups 19 16 17 18 19 16 17 18 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals is used to galvanise iron ? Lead Copper Zinc Mercury Lead Copper Zinc Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry Magnetite is Fe3O4 FeCO3 Fe2O3 2Fe2O3. 3H2O Fe3O4 FeCO3 Fe2O3 2Fe2O3. 3H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Stainless steel is usually made by alloying the steel with Chromium and nickel Manganese and copper Copper and chromium Copper and nickel Chromium and nickel Manganese and copper Copper and chromium Copper and nickel ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Heavy metals Light metals Noble gases Halogens Heavy metals Light metals Noble gases Halogens ANSWER DOWNLOAD EXAMIANS APP
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