Chemistry What is the most commonly used substance in fluorescent tubes? Sodium oxide and argon Mercury vapour and argon Sodium vapour and neon Mercury oxide and neon Sodium oxide and argon Mercury vapour and argon Sodium vapour and neon Mercury oxide and neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Element 106 was discovered by Lawrence Rutherford Kurchatove Seaborg Lawrence Rutherford Kurchatove Seaborg ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide bleaches colouring matter by : Dehydration Decomposition Oxidation Reduction Dehydration Decomposition Oxidation Reduction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Biofertilizers convert nitrogen to ________ . Nitrogenase Amino acids Nitrates Ammonia Nitrogenase Amino acids Nitrates Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry In chemical terms, what are alums used for purifying water for drinking purposes ? Hydrated chlorides Nitrates of aluminium Double nitrate Double sulphates Hydrated chlorides Nitrates of aluminium Double nitrate Double sulphates ANSWER DOWNLOAD EXAMIANS APP
Chemistry Carbon monoxide is an inflammable gas. Which one of the following is also inflammable? Oxygen Nitrogen Helium Hydrogen Oxygen Nitrogen Helium Hydrogen ANSWER DOWNLOAD EXAMIANS APP
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