Chemistry The most electropositive elements among the following is Cs Na K Ca Cs Na K Ca ANSWER DOWNLOAD EXAMIANS APP
Chemistry An inert gas mixed with oxygen given to patients suffering from restricted breathing is Helium Argon Krypton Radon Helium Argon Krypton Radon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contributes largely to the ‘green house effect’ ? Carbon dioxide Carbon monoxide Water vapour Ozone Carbon dioxide Carbon monoxide Water vapour Ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is also known as solution ? A compound A heterogeneous mixture A homogeneous mixture A suspension A compound A heterogeneous mixture A homogeneous mixture A suspension ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the number of moles of CO2 which contains 16 g of oxygen? 0.5 mole 0.25 mole 0.2 mole 0.4 mole 0.5 mole 0.25 mole 0.2 mole 0.4 mole ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has High bond dissociation energy High nuclear charge Smaller atomic radius Stable half filled 2p sub level High bond dissociation energy High nuclear charge Smaller atomic radius Stable half filled 2p sub level ANSWER DOWNLOAD EXAMIANS APP
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