Chemistry Which of the following metals occurs in free state ? Zinc Iron Copper Lead Zinc Iron Copper Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gypsum is used for improvement of: Acidic soils Podsols Alkaline soils Saline soils Acidic soils Podsols Alkaline soils Saline soils ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following elements is found in maximum percentage in the human body ? Hydrogen Oxyzen Nitrozen Carbon Hydrogen Oxyzen Nitrozen Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is harder than graphite because of : Difference of crystalline structures None of these Tetrahedral structure of diamond Difference in layers of atoms Difference of crystalline structures None of these Tetrahedral structure of diamond Difference in layers of atoms ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the process is known as nitrification? Reaction of Nitrogen Monoxide with oxygen to form nitric acid Conversion of nitrite to nitric oxide Conversion of ammonia to nitrites Reaction of nitrogen dioxide with water to form nitric acid Reaction of Nitrogen Monoxide with oxygen to form nitric acid Conversion of nitrite to nitric oxide Conversion of ammonia to nitrites Reaction of nitrogen dioxide with water to form nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief source for the production of nitrogeneous fertilizers is : Nitrogen dioxide Nitric acid Nitrogen Ammonia Nitrogen dioxide Nitric acid Nitrogen Ammonia ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS