Chemistry Normal rainwater has a pH level of 8.3 6.3 3.2 5.6 8.3 6.3 3.2 5.6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used in the manufacture of safety matches is Phosphorous Silicon Sulphur Magnesium Phosphorous Silicon Sulphur Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to SO3 SO2 N2O NO2 SO3 SO2 N2O NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals is used in Space Crafts to withstand high temperatures ? Pb Ni Ti Fe Pb Ni Ti Fe 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 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 heat required for combustion of petrol is very low The oxygen content of water is isolated by petrol and thus it helps in burning 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 heat required for combustion of petrol is very low ANSWER DOWNLOAD EXAMIANS APP
Chemistry The molecular mass of a gas is Twice its vapour pressure Half its vapour pressure Not related to its vapour pressure Equal to its vapour pressure Twice its vapour pressure Half its vapour pressure Not related to its vapour pressure Equal to its vapour pressure ANSWER DOWNLOAD EXAMIANS APP
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