Chemistry Benzene cannot undergo : Substitution Addition Oxidation Elimination Substitution Addition Oxidation Elimination ANSWER DOWNLOAD EXAMIANS APP
Chemistry The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of discovery of elements metallurgy periodic table of contents atomic structure discovery of elements metallurgy periodic table of contents atomic structure ANSWER DOWNLOAD EXAMIANS APP
Chemistry Petroleum is a mixture of Hydrocarbons Elements Salts Polymers Hydrocarbons Elements Salts Polymers ANSWER DOWNLOAD EXAMIANS APP
Chemistry The name of unreactive gas is Oxygen Hydrogen Carbon dioxide Nitrogen Oxygen Hydrogen Carbon dioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry When Hydrogen starts burning in air, it produces ? Water Methane Carbonic Acid Ammonia Water Methane Carbonic Acid Ammonia ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Calcium, Phosphorous and Potassium Phosphorous, Sodium and Nitrogen ANSWER DOWNLOAD EXAMIANS APP
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