Chemistry Why is water not suitable for putting out a petrol fire ? 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 heat required for combustion of petrol is very low The oxygen content of water is isolated by petrol and thus it helps in burning 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 heat required for combustion of petrol is very low The oxygen content of water is isolated by petrol and thus it helps in burning ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galvanised iron is made by coating iron with Sulphur Nickel Chromium Zinc Sulphur Nickel Chromium Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following has the highest lattice energy NaF KF RbF CsF NaF KF RbF CsF ANSWER DOWNLOAD EXAMIANS APP
Chemistry The deterioration of a metal by an electrochemical process is commonly termed as Erosion Passivation Abrasion Corrosion Erosion Passivation Abrasion Corrosion ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief constituent of vinegar is Formic acid Oxalic acid Salycylic acid Acetic acid Formic acid Oxalic acid Salycylic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The increasing abundance of green house gases in atmosphere has led to the following effect except Depletion of ozone layer in the stratosphere Carbon dioxide ferilization effect Global warming Oxygen fertilization effect Depletion of ozone layer in the stratosphere Carbon dioxide ferilization effect Global warming Oxygen fertilization effect ANSWER DOWNLOAD EXAMIANS APP
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