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 The heat required for combustion of petrol is very low Petrol is too inflammable to be extinguished by water 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 The heat required for combustion of petrol is very low Petrol is too inflammable to be extinguished by water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of safety matches? Graphite Silicon Phosphorus Sodium Graphite Silicon Phosphorus Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Spontaneous change is one in there is: A lowering of entropy An increase in Internal energy A lowering of free energy Increase in free energy A lowering of entropy An increase in Internal energy A lowering of free energy Increase in free energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Smoke is formed due to Solid dispersed in gas Solid dispresed in liquid Gas dispersed in gas Gas dispresed in solid Solid dispersed in gas Solid dispresed in liquid Gas dispersed in gas Gas dispresed in solid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brine refers to : Pure water Salt water Sweet water Starch water Pure water Salt water Sweet water Starch water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The quality of petrol is expressed in terms of Cetane number Added unlead compounds Octane number Gold number Cetane number Added unlead compounds Octane number Gold number ANSWER DOWNLOAD EXAMIANS APP