Chemistry The mass number of a nucleus is the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight always less than its atomic number a fraction the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight always less than its atomic number a fraction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which gas is used for converting vegetable oils into saturated fats ? H2 Cl2 SO2 O2 H2 Cl2 SO2 O2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gypsum is used for improvement of: Acidic soils Saline soils Alkaline soils Podsols Acidic soils Saline soils Alkaline soils Podsols ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not soluble in water ? Potassium sulphate Sodium sulphate Lead Sulphate Zinc sulphate Potassium sulphate Sodium sulphate Lead Sulphate Zinc sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Concentration of a material which is lethal to 50% animal is called LC50 ADI LD50 NOAEL LC50 ADI LD50 NOAEL ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the process is known as nitrification? Conversion of ammonia to nitrites Conversion of nitrite to nitric oxide Reaction of Nitrogen Monoxide with oxygen to form nitric acid Reaction of nitrogen dioxide with water to form nitric acid Conversion of ammonia to nitrites Conversion of nitrite to nitric oxide Reaction of Nitrogen Monoxide with oxygen to form nitric acid Reaction of nitrogen dioxide with water to form nitric acid ANSWER DOWNLOAD EXAMIANS APP
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