Chemistry Hydrogen is not found in atmosphere because It is absorbed by plants It immediately combines with oxygen to form water It is the lightest gas It is highly inflammable It is absorbed by plants It immediately combines with oxygen to form water It is the lightest gas It is highly inflammable ANSWER DOWNLOAD EXAMIANS APP
Chemistry The scientist who experimentally proved the existance of positron is Fermi Bohr Anderson Bethe Fermi Bohr Anderson Bethe ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called : Vulcanization Alloy formation Galvanization Zinc plating Vulcanization Alloy formation Galvanization Zinc plating ANSWER DOWNLOAD EXAMIANS APP
Chemistry Conduction band electrons have more mobility than holes because they Need less energy to move them Have negative charge Experience collision less frequently Are lighter Need less energy to move them Have negative charge Experience collision less frequently Are lighter ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen is an essential constituent of all : Fats Proteins Vitamins Carbohydrates Fats Proteins Vitamins Carbohydrates ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound that has the least value for octane number is : 2,2-dimethyl hexane Iso-octane N-heptane 2-methyl heptane 2,2-dimethyl hexane Iso-octane N-heptane 2-methyl heptane ANSWER DOWNLOAD EXAMIANS APP
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