Chemistry The most electronegative element among the following is oxygen fluorine bromine sodium oxygen fluorine bromine sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Where does the oxygen that keeps us alive come from? Water Carbonates absorbed from soil Oxides of minerals Carbon dioxide Water Carbonates absorbed from soil Oxides of minerals Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Supplying oxygen for people travelling in jets Higher rate of photosynthesis Checking the penetration of ultra-violet rays to the earth Increasing the average global temperature in recent years Supplying oxygen for people travelling in jets Higher rate of photosynthesis Checking the penetration of ultra-violet rays to the earth Increasing the average global temperature in recent years ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the mass percentage of carbon in carbon dioxide (CO2) 0.273 0.158 0.323 0.201 0.273 0.158 0.323 0.201 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Hydrogen Helium Methane Nitrogen Hydrogen Helium Methane Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry An element of atomic no. 29 belongs to F-block S-block D-block P-block F-block S-block D-block P-block ANSWER DOWNLOAD EXAMIANS APP