Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Trimethyl lead Triethyl lead Tetraethyl lead Tetramethyl lead Trimethyl lead Triethyl lead Tetraethyl lead Tetramethyl lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mark the compound which possess ionic, covalent and coordinate bonds. SO3 NH4Cl SO2 H2O SO3 NH4Cl SO2 H2O ANSWER DOWNLOAD EXAMIANS APP
Chemistry The increasing abundance of green house gases in atmosphere has led to the following effect except Oxygen fertilization effect Carbon dioxide ferilization effect Depletion of ozone layer in the stratosphere Global warming Oxygen fertilization effect Carbon dioxide ferilization effect Depletion of ozone layer in the stratosphere Global warming ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atmospheric gas that is mainly responsible for Green House effect : Oxygen Nitrogen Ozone Carbondioxide Oxygen Nitrogen Ozone Carbondioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water is not effective in extinguishing a fire caused by petrol because Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol are miscible with each other Water and petrol react chemically The flame is too hot for water to cool it down Water and petrol are immiscible with each other and petrol which forms the upper layer continues to burn Water and petrol are miscible with each other Water and petrol react chemically The flame is too hot for water to cool it down ANSWER DOWNLOAD EXAMIANS APP
Chemistry Of the following compounds of calcium, the one having highest covalent character is Cacl2 Cal2 CaBr2 CaF2 Cacl2 Cal2 CaBr2 CaF2 ANSWER DOWNLOAD EXAMIANS APP
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