Chemistry Which one of the following is not a ‘green house gas’ ? Methane Nitrogen Carbon dioxide Chlorofluorocarbons Methane Nitrogen Carbon dioxide Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in developing photographic films is Sodium sulphate Hydroquinone Hypo Silver bromide Sodium sulphate Hydroquinone Hypo Silver bromide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Kinetics is the study of: The rate of chemical reaction All of these are correct How fast the reactions go The mechanisms and paths of the molecules take in joining from one reactant to products The rate of chemical reaction All of these are correct How fast the reactions go The mechanisms and paths of the molecules take in joining from one reactant to products ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal used to recover copper from a solution of copper sulphate is Na Ag Fe Hg Na Ag Fe Hg ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to Its ability to absorb all other colours except yellow The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour The low ionisation energy of sodium Its ability to absorb all other colours except yellow The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour The low ionisation energy of sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid used in lead storage cells is Hydrochloric acid Nitric acid Sulphuric acid Phosphoric acid Hydrochloric acid Nitric acid Sulphuric acid Phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
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