Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is More abundant than hydrogen More stable Lighter than hydrogen Non-combustible More abundant than hydrogen More stable Lighter than hydrogen Non-combustible ANSWER DOWNLOAD EXAMIANS APP
Chemistry Carbon footprint can be reduced by Using energy efficient appliances All of these Commuting by public transport Recycling waste materials Using energy efficient appliances All of these Commuting by public transport Recycling waste materials ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which is mainly responsible for the green house effect is: Ozone Carbon dioxide Carbon monoxide Oxygen Ozone Carbon dioxide Carbon monoxide Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas dissolved in water that makes it basic is : Ammonia Sulphur dioxide Carbon dioxide Hydrogen Ammonia Sulphur dioxide Carbon dioxide Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is 'milk of magnesia' chemically? Magnesium hydroxide Sodium bicarbonate Calcium hydroxide Magnesium carbonate Magnesium hydroxide Sodium bicarbonate Calcium hydroxide Magnesium carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Lead pencil contains Ferrous sulphide Graphite Lead sulphide Lead Ferrous sulphide Graphite Lead sulphide Lead ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS