Chemistry The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is helium ozone methane oxygen helium ozone methane oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vulcanized rubber contains sulphur 7-9% 3-5% 0.02 10-15% 7-9% 3-5% 0.02 10-15% ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following alkali metals has highest specific heat? Potassium Rubidium Caesium Lithium Potassium Rubidium Caesium Lithium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used for filling weather balloons is Air Nitrogen Hydrogen Helium Air Nitrogen Hydrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Spontaneous change is one in there is: Increase in free energy An increase in Internal energy A lowering of entropy A lowering of free energy Increase in free energy An increase in Internal energy A lowering of entropy A lowering of free energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a : Power transmittor Uninterrupted power supply (UPS) Battery Generator Power transmittor Uninterrupted power supply (UPS) Battery Generator ANSWER DOWNLOAD EXAMIANS APP
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