Chemistry Helium gas is used in gas balloons instead of hydrogen gas because it is More stable More abundant than hydrogen Lighter than hydrogen Non-combustible More stable More abundant than hydrogen Lighter than hydrogen Non-combustible ANSWER DOWNLOAD EXAMIANS APP
Chemistry Major portion of the earth’s crust is mainly constituted by Silicon and Iron Oxygen and Silicon Silicon and Aluminium Oxygen and Iron Silicon and Iron Oxygen and Silicon Silicon and Aluminium Oxygen and Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has Stable half filled 2p sub level High nuclear charge Smaller atomic radius High bond dissociation energy Stable half filled 2p sub level High nuclear charge Smaller atomic radius High bond dissociation energy 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 Brass is a solution of molten copper in Molten tin Solid zinc Gaseous zinc Molten zinc Molten tin Solid zinc Gaseous zinc Molten zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is a naturally occuring noble gas Boron Sodium Potassium Argon Boron Sodium Potassium Argon ANSWER DOWNLOAD EXAMIANS APP
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