Chemistry Ruby and sapphire are oxides of Copper Iron Aluminium Tin Copper Iron Aluminium Tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Citric acid is present in free form in Lemon Tamarind Apple Milk Lemon Tamarind Apple Milk ANSWER DOWNLOAD EXAMIANS APP
Chemistry The molecular mass of a gas is Not related to its vapour pressure Twice its vapour pressure Half its vapour pressure Equal to its vapour pressure Not related to its vapour pressure Twice its vapour pressure Half its vapour pressure Equal to its vapour pressure ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main buffer system of the human blood is H2CO3 - HCO3 CH3COOH - CH3COO- H2CO3 - CO32- NH2CONH2 - NH2CONH+ H2CO3 - HCO3 CH3COOH - CH3COO- H2CO3 - CO32- NH2CONH2 - NH2CONH+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has High nuclear charge Stable half filled 2p sub level Smaller atomic radius High bond dissociation energy High nuclear charge Stable half filled 2p sub level Smaller atomic radius High bond dissociation energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because The balloon is weightless Helium is less dense than air Air exerts an upward force on the balloon Helium pushes down on the air below the balloon The balloon is weightless Helium is less dense than air Air exerts an upward force on the balloon Helium pushes down on the air below the balloon ANSWER DOWNLOAD EXAMIANS APP
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