Chemistry The mass of one Avogadro number of helium atom is 4 x 6.02 x 1023 gram 4.00 gram 1.00 gram 8.00 gram 4 x 6.02 x 1023 gram 4.00 gram 1.00 gram 8.00 gram ANSWER DOWNLOAD EXAMIANS APP
Chemistry In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins? Copper Aluminium Iron Titanium Copper Aluminium Iron Titanium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Biofertilizers convert nitrogen to ________ . Amino acids Nitrates Ammonia Nitrogenase Amino acids Nitrates Ammonia Nitrogenase ANSWER DOWNLOAD EXAMIANS APP
Chemistry Spontaneous change is one in there is: An increase in Internal energy A lowering of free energy Increase in free energy A lowering of entropy An increase in Internal energy A lowering of free energy Increase in free energy A lowering of entropy ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element by number in the living system is : Oxygen Nitrogen Hydrogen Carbon Oxygen Nitrogen Hydrogen Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pollutant from motor car exhaust that causes mental disease is Lead NO2 Hg SO2 Lead NO2 Hg SO2 ANSWER DOWNLOAD EXAMIANS APP
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