Chemistry Petroleum is a mixture of Polymers Salts Elements Hydrocarbons Polymers Salts Elements Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Biofertilizers convert nitrogen to ________ . Ammonia Amino acids Nitrogenase Nitrates Ammonia Amino acids Nitrogenase Nitrates ANSWER DOWNLOAD EXAMIANS APP
Chemistry Peroxyacetyl nitrate is a Secondary pollutant Plant hormone Acidic dye Vitamin Secondary pollutant Plant hormone Acidic dye Vitamin ANSWER DOWNLOAD EXAMIANS APP
Chemistry The common name of sodium bicarbonate is Soda lime Baking powder Baking soda Soda ash Soda lime Baking powder Baking soda Soda ash ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Oxygen Magnesium Iron Silicon Oxygen Magnesium Iron Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is 7.2 x 5x/36 5x x/6 7.2 x 5x/36 5x x/6 ANSWER DOWNLOAD EXAMIANS APP
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