Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is Non-combustible Lighter than hydrogen More abundant than hydrogen More stable Non-combustible Lighter than hydrogen More abundant than hydrogen More stable ANSWER DOWNLOAD EXAMIANS APP
Chemistry If lime water is kept in the air, it turns milky due to presence of : Sulphurdioxide Carbondioxide Oxygen Nitrogen Sulphurdioxide Carbondioxide Oxygen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet radiation striking the earth is due to the depletion of Carbon dioxide Ozone Oxygen Carbon monoxide Carbon dioxide Ozone Oxygen Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry A polymeric substance used to make parachute is Terylene Rayon Viscose Cotton Terylene Rayon Viscose Cotton ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant element by number in the living system is : Carbon Oxygen Nitrogen Hydrogen Carbon Oxygen Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
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