Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.509 0.305 0.658 0.727 0.509 0.305 0.658 0.727 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet rays can be used in water treatment as Flocculator Precipitator Disinfectant Hydrolyser Flocculator Precipitator Disinfectant Hydrolyser ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements in the modern Periodic table are arranged according to their Neutron number Atomic Weight Atomic number Mass number Neutron number Atomic Weight Atomic number Mass number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Choose the incorrect statement pertaining to organic compounds They have low melting and boiling points They do not dissolve in water They are not easily combustible They contain mainly carbon and hydrogen They have low melting and boiling points They do not dissolve in water They are not easily combustible They contain mainly carbon and hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Carbon footprint can be reduced by Commuting by public transport Recycling waste materials All of these Using energy efficient appliances Commuting by public transport Recycling waste materials All of these Using energy efficient appliances ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet radiation striking the earth is due to the depletion of Oxygen Carbon monoxide Carbon dioxide Ozone Oxygen Carbon monoxide Carbon dioxide Ozone ANSWER DOWNLOAD EXAMIANS APP
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