Chemistry In a Carbonyl group a carbon atom makes double bond with Oxygen None of these Carbon Hydrogen Oxygen None of these Carbon Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element with highest first ionisation energy is Helium Sodium Lithium Hydrogen Helium Sodium Lithium Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a gaseous air pollutant? Oxides of nitrogen Hydrocarbon Smoke Oxides of sulphur Oxides of nitrogen Hydrocarbon Smoke Oxides of sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry The minimum energy required for an effective collision is Activation energy Free energy Internal energy Threshold energy Activation energy Free energy Internal energy Threshold energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ? Nitrogen Sodium Neon Hydrogen Nitrogen Sodium Neon Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fuels causes minimum environmental pollution? Kerosene Coal Hydrogen Diesel Kerosene Coal Hydrogen Diesel ANSWER DOWNLOAD EXAMIANS APP