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 most abundant element in the earth’s atmosphere is Krypton Oxygen Nitrogen Argon Krypton Oxygen Nitrogen Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heavy metals got their name because compared to other atoms they have Higher densities Higher atomic numbers Higher atomic radii Higher atomic masses Higher densities Higher atomic numbers Higher atomic radii Higher atomic masses ANSWER DOWNLOAD EXAMIANS APP
Chemistry The fat of a common mussel-secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is: Phenyl alanine Dihydroxy phenyl alanine Hydroxy phenyl alanine Amino phenyl alanine Phenyl alanine Dihydroxy phenyl alanine Hydroxy phenyl alanine Amino phenyl alanine ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Vinegar' is a commercial name of Citric acid Hydrochloric acid Oxalic acid Acetic acid Citric acid Hydrochloric acid Oxalic acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Tetra ethyle lead (TEL) is An antioxidant A reductant An antiknock compound A catalyst in burning fossil fuel An antioxidant A reductant An antiknock compound A catalyst in burning fossil fuel ANSWER DOWNLOAD EXAMIANS APP