Chemistry Magnetite is FeCO3 Fe3O4 Fe2O3 2Fe2O3. 3H2O FeCO3 Fe3O4 Fe2O3 2Fe2O3. 3H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen is an essential constituent of all : Carbohydrates Fats Vitamins Proteins Carbohydrates Fats Vitamins Proteins ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the product formed when sodium bicarbonate is heated strongly? Sodium Peroxide Sodium Carbonate Sodium Monoxide Sodium Hydroxide Sodium Peroxide Sodium Carbonate Sodium Monoxide Sodium Hydroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry During fermentation of sugar, the compound which is always formed is : Acetic Acid Ethylene Ethyl Alcohol Methyl Alcohol Acetic Acid Ethylene Ethyl Alcohol Methyl Alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer is present in Ionosphere Troposphere Stratosphere Exosphere Ionosphere Troposphere Stratosphere Exosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following nonmetals shows allotropy in the liquid state? Bromine Sulphur Carbon Phosphorous Bromine Sulphur Carbon Phosphorous ANSWER DOWNLOAD EXAMIANS APP