Chemistry Why is water not suitable for putting out a petrol fire ? 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 The oxygen content of water is isolated by petrol and thus it helps in burning Petrol is too inflammable to be extinguished by water ANSWER DOWNLOAD EXAMIANS APP
Chemistry One property of ammonia is It is insoluble in water It is a yellowish gas Its aqueous solution turns red litmus blue It is a odourless gas It is insoluble in water It is a yellowish gas Its aqueous solution turns red litmus blue It is a odourless gas ANSWER DOWNLOAD EXAMIANS APP
Chemistry The length of double bond is _______ than single bond Shorter Longer Of same lenght None of these Shorter Longer Of same lenght None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of elements in the Periodic table 118 112 127 115 118 112 127 115 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is Sea water Lake water Rain water River water Sea water Lake water Rain water River water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Normal rainwater is slightly acidic due to the presence of None of these Sulphur dioxide Methane Carbon dioxide None of these Sulphur dioxide Methane Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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