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 The chemical bahaviour of an atom depends upon The number of nucleons in the nucleus The number of neutrons in the nucleus The number of electrons orbiting around the nucleus The number of protons in its nucleus The number of nucleons in the nucleus The number of neutrons in the nucleus The number of electrons orbiting around the nucleus The number of protons in its nucleus ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Refrigerant 'FREON' is Hydrofluosilicic Acid Difluoro Dichloro Methane Calcium Tetra Fluoride Fluorspar and Felspar Hydrofluosilicic Acid Difluoro Dichloro Methane Calcium Tetra Fluoride Fluorspar and Felspar ANSWER DOWNLOAD EXAMIANS APP
Chemistry Dry ice is the solid form of : Air Water Nitrogen Carbon di–oxide Air Water Nitrogen Carbon di–oxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as a lubricant in heavy machines? Bauxite Sulphur Graphite Phosphorus Bauxite Sulphur Graphite Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry The temperature of oxy-acetylene flame is around 3200°C 2800°C 3600°C 4000°C 3200°C 2800°C 3600°C 4000°C ANSWER DOWNLOAD EXAMIANS APP
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