Chemistry Except mercury which is the other metal that is liquid at standard conditions for temperature and pressure Bromine Barium Lead Magnesium Bromine Barium Lead Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas dissolved in water that makes it basic is : Ammonia Hydrogen Carbon dioxide Sulphur dioxide Ammonia Hydrogen Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Barium peroxide Ozone Sodium peroxide Hydrogen peroxide Barium peroxide Ozone Sodium peroxide Hydrogen peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is carbon oxygen nitrogen hydrogen carbon oxygen nitrogen hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Roasting Electrolysis Oxidation Zone refining Roasting Electrolysis Oxidation Zone refining ANSWER DOWNLOAD EXAMIANS APP
Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is Non-combustible Lighter than hydrogen More stable More abundant than hydrogen Non-combustible Lighter than hydrogen More stable More abundant than hydrogen ANSWER DOWNLOAD EXAMIANS APP
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