Chemistry Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs? Helium Methane Nitrogen Hydrogen Helium Methane Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry When quick lime is added to water Heat is absorbed No heat change takes place Heat is liberated Temperature decreases Heat is absorbed No heat change takes place Heat is liberated Temperature decreases ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms having the same number of protons but different number of neutrons are called : Anions Cations Isotopes Higgs-boson Anions Cations Isotopes Higgs-boson ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the principal ore of aluminium ? Lignite Bauxite Copper Dolomite Lignite Bauxite Copper Dolomite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone depletion in the stratosphere is mainly caused by SO2 NO2 Chlorogluorocarbons NO SO2 NO2 Chlorogluorocarbons NO ANSWER DOWNLOAD EXAMIANS APP
Chemistry 1 carat of diamond is equal to 100 g 200 mg 200 g 100 mg 100 g 200 mg 200 g 100 mg ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS