Chemistry Which of the following is secondary air pollutant ? Dust particles Photochemical smog NO2 SO2 Dust particles Photochemical smog NO2 SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Periodic table contains how many groups 18 17 16 19 18 17 16 19 ANSWER DOWNLOAD EXAMIANS APP
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 Nucleus of an atom consists of. Neutron Proton Electron, Proton and Neutron Proton and Neutron Neutron Proton Electron, Proton and Neutron Proton and Neutron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle? 3 billion years 100 years 13 days 0.01 minute 3 billion years 100 years 13 days 0.01 minute ANSWER DOWNLOAD EXAMIANS APP
Chemistry German silver, an alloy, does not contain the metal Nickel Zinc Silver Copper Nickel Zinc Silver Copper ANSWER DOWNLOAD EXAMIANS APP
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