Chemistry The depletion of Ozone layer is mainly due to Chlorofluorocarbons Radioactive rays Volcanic eruptions Aviation fuels Chlorofluorocarbons Radioactive rays Volcanic eruptions Aviation fuels ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which method will be employed to test the hardness of water? Distillation Formation of lather with soap None of these Boiling Distillation Formation of lather with soap None of these Boiling ANSWER DOWNLOAD EXAMIANS APP
Chemistry The maximum number of isomers for an alkene with molecular formula C4H8 is 2 3 5 4 2 3 5 4 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to increase the anti-knocking property of petrol ? Trimethyl lead Triethyl lead Tetramethyl lead Tetraethyl lead Trimethyl lead Triethyl lead Tetramethyl lead Tetraethyl lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrification is the biological process of converting Ammonia into nitrite Ammonia into N2 N2 into nitrate N2into nitrite Ammonia into nitrite Ammonia into N2 N2 into nitrate N2into nitrite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is boiling adding caustic soda adding sodium carbonate distillation boiling adding caustic soda adding sodium carbonate distillation ANSWER DOWNLOAD EXAMIANS APP
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