Chemistry The depletion of Ozone layer is mainly due to Aviation fuels Radioactive rays Volcanic eruptions Chlorofluorocarbons Aviation fuels Radioactive rays Volcanic eruptions Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is also used as a Bio fertilizer? Ammonia Uric Acid Urea None of these Ammonia Uric Acid Urea None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as filler in tyre of rubber ? Coal Carbon black Graphite Coke Coal Carbon black Graphite Coke ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultra purification of a metal is done by : Zone melting Slugging Leaching Smelting Zone melting Slugging Leaching Smelting ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of fertilizers ? Lead Potassium Fluorine Aluminium Lead Potassium Fluorine Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the lightest element in the periodic table Hydrogen Carbon Oxygen Helium Hydrogen Carbon Oxygen Helium ANSWER DOWNLOAD EXAMIANS APP
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