Chemistry The minimum energy required for an effective collision is Activation energy Threshold energy Free energy Internal energy Activation energy Threshold energy Free energy Internal energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? Black phosphorus White phosphorus Violet phosphorus Red phosphorus Black phosphorus White phosphorus Violet phosphorus Red phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a noble gas ? Hydrogen Neon Argon Helium Hydrogen Neon Argon Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Methane Nitrogen dioxide Carbon monoxide Sulphur dioxide Methane Nitrogen dioxide Carbon monoxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry What particles move around the nucleus of an atom and are negatively charged? Electrons Neutrons Protons Positrons Electrons Neutrons Protons Positrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main constituent of natural gas is Methane Butane Propane Ethane Methane Butane Propane Ethane ANSWER DOWNLOAD EXAMIANS APP
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