Chemistry Which method will be employed to test the hardness of water? Distillation Formation of lather with soap None of these Boiling Distillation Formation of lather with soap None of these Boiling ANSWER DOWNLOAD EXAMIANS APP
Chemistry Why is water not suitable for putting out a petrol fire ? The oxygen content of water is isolated by petrol and thus it helps in burning Petrol is too inflammable to be extinguished by water 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 The oxygen content of water is isolated by petrol and thus it helps in burning Petrol is too inflammable to be extinguished by water 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 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The reaction intermediate formed during the preparation of diethylether from ethanol by treatment with H2SO4 is Carbene Free radical Carbanion Carbocation Carbene Free radical Carbanion Carbocation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a characteristic feature of alloys? They are Mixtures Compounds Homogeneous systems Solutions Mixtures Compounds Homogeneous systems Solutions ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen in water is commonly found in the form of Nitrite Nitric oxide Nitrous oxide Nitrate Nitrite Nitric oxide Nitrous oxide Nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical name of 'Hypo' commonly used in photography is Sodium nitrate Silver iodide Silver nitrate Sodium thiosulphate Sodium nitrate Silver iodide Silver nitrate Sodium thiosulphate ANSWER DOWNLOAD EXAMIANS APP
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