Chemistry London smog is found in Winter during morning time Summer during day time Winter during day time Summer during morning time Winter during morning time Summer during day time Winter during day time Summer during morning time ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chernobyl disaster is the result of pollution by Radioactive waste Acid rain Oil spill Carbon dioxide Radioactive waste Acid rain Oil spill Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Sodium peroxide Ozone Hydrogen peroxide Barium peroxide Sodium peroxide Ozone Hydrogen peroxide Barium peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bayer's reagent is Acidified potassium permanganate Alkaline potassium permanganate Bromine water Hydrogen peroxide Acidified potassium permanganate Alkaline potassium permanganate Bromine water Hydrogen peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ‘Green House effect’ is produced due to the presence of excess amount of Carbon monoxide Methane Sulphur dioxide Nitrogen dioxide Carbon monoxide Methane Sulphur dioxide Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method that cannot be used for removing permanent hardness of water is distillation adding sodium carbonate adding caustic soda boiling distillation adding sodium carbonate adding caustic soda boiling ANSWER DOWNLOAD EXAMIANS APP
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