Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has Stable half filled 2p sub level High bond dissociation energy Smaller atomic radius High nuclear charge Stable half filled 2p sub level High bond dissociation energy Smaller atomic radius High nuclear charge ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following minerals is found in pure form? Copper Manganese Iron Bauxite Copper Manganese Iron Bauxite 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 Petrol is too inflammable to be extinguished by water 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 Water, being heavy, slips below petrol which thus remains in contact with air and burns Petrol is too inflammable to be extinguished by water 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 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Milk tastes sour when kept in the open for sometime due to the formation of Citric acid Acetic acid Carbonic acid Lactic acid Citric acid Acetic acid Carbonic acid Lactic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Acid rain is caused due to pollution of atmosphere by Oxides of nitrogen and sulphur Oxides of carbon and nitrogen Oxides of nitrogen and phosphorous None of these Oxides of nitrogen and sulphur Oxides of carbon and nitrogen Oxides of nitrogen and phosphorous None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used for refrigeration? Chlorine Sulphur dioxide Phosphine Freon Chlorine Sulphur dioxide Phosphine Freon ANSWER DOWNLOAD EXAMIANS APP
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