Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Chlorofluorocarbon Sulphur dioxide Nitrous oxide Carbon dioxide Chlorofluorocarbon Sulphur dioxide Nitrous oxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Trinitrotoluene is Used to fuse two metals Used as an abrasive Used as an explosive Used to melt metals Used to fuse two metals Used as an abrasive Used as an explosive Used to melt metals ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is not a cause for present global warming and climate change ? Carbondioxide emission Methane emission Deforstation CFC emission Carbondioxide emission Methane emission Deforstation CFC emission ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which metal does not undergo corrosion due to the formation of oxide layer? Zinc Copper Aluminium Iron Zinc Copper Aluminium Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used to dilute oxygen for breathing by deep sea divers is: Argon Nitrogen Helium Neon Argon Nitrogen Helium Neon ANSWER DOWNLOAD EXAMIANS APP
Chemistry In organic compounds, nitrogen is estimated by Liebig's method Victor-Meyer's method Dumas method Carius method Liebig's method Victor-Meyer's method Dumas method Carius method ANSWER DOWNLOAD EXAMIANS APP
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