Chemistry Vulcanized rubber contains sulphur 7-9% 10-15% 3-5% 0.02 7-9% 10-15% 3-5% 0.02 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Permanent – hardness of water may be removed by addition of Potassium Permangante Sodium carbonate Lime Alum Potassium Permangante Sodium carbonate Lime Alum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to remove ink and rust stains on cloth? Kerosene oil Ether Oxalic acid Alcohol Kerosene oil Ether Oxalic acid Alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element by number in the living system is : Oxygen Carbon Nitrogen Hydrogen Oxygen Carbon Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Biofertilizers convert nitrogen to ________ . Nitrogenase Ammonia Amino acids Nitrates Nitrogenase Ammonia Amino acids Nitrates ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as a lubricant in heavy machines? Sulphur Phosphorus Bauxite Graphite Sulphur Phosphorus Bauxite Graphite ANSWER DOWNLOAD EXAMIANS APP
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