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 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 Water, being heavy, slips below petrol which thus remains in contact with air and burns Petrol is too inflammable to be extinguished by water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The graphite rods in the nuclear reactor produce neutrons undergo combustion which triggers the nuclear fission react with U to release energy convert fast moving neutrons into thermal neutrons produce neutrons undergo combustion which triggers the nuclear fission react with U to release energy convert fast moving neutrons into thermal neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following electrodes is used in strongly alkaline solution Mercury - mercurous sulphate electrode Mercury - mercuric oxide electrode Mercury - mercurous chloride electrode Silver - silver chloride electrode Mercury - mercurous sulphate electrode Mercury - mercuric oxide electrode Mercury - mercurous chloride electrode Silver - silver chloride electrode ANSWER DOWNLOAD EXAMIANS APP
Chemistry The minimum energy required for an effective collision is Internal energy Activation energy Free energy Threshold energy Internal energy Activation energy Free energy Threshold energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical bahaviour of an atom depends upon The number of neutrons in the nucleus The number of protons in its nucleus The number of electrons orbiting around the nucleus The number of nucleons in the nucleus The number of neutrons in the nucleus The number of protons in its nucleus The number of electrons orbiting around the nucleus The number of nucleons in the nucleus ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most reactive among the halogens is Chlorine Fluorine Bromine Iodine Chlorine Fluorine Bromine Iodine ANSWER DOWNLOAD EXAMIANS APP
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