Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has Stable half filled 2p sub level 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 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Why is water not suitable for putting out a petrol fire ? Water, being heavy, slips below petrol which thus remains in contact with air and burns The oxygen content of water is isolated by petrol and thus it helps in burning The heat required for combustion of petrol is very low Petrol is too inflammable to be extinguished by water Water, being heavy, slips below petrol which thus remains in contact with air and burns The oxygen content of water is isolated by petrol and thus it helps in burning The heat required for combustion of petrol is very low Petrol is too inflammable to be extinguished by water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Submarines move under water. They have engines that run on Batteries Diesel Steam Petrol and oxygen Batteries Diesel Steam Petrol and oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry All isotopes of the same element have ________ The same atomic number but different atomic masses Different atomic numbers and different atomic mass Different atomic numbers and the same atomic mass The same atomic number and the atomic mass The same atomic number but different atomic masses Different atomic numbers and different atomic mass Different atomic numbers and the same atomic mass The same atomic number and the atomic mass ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is least likely to be found in commercial fertilisers? Silicon Nitrogen Phosphorous Potassium Silicon Nitrogen Phosphorous Potassium ANSWER DOWNLOAD EXAMIANS APP
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