Chemistry Which of the following is a secondary pollutant ? SO2 NO PAN CO SO2 NO PAN CO ANSWER DOWNLOAD EXAMIANS APP
Chemistry The constituents of automobile exhaust that can cause cancer is/are : Carbon monoxide Oxides of nitrogen Lead Polycyclic hydrocarbons Carbon monoxide Oxides of nitrogen Lead Polycyclic hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The rusting of iron is a/an Electrical change None of these Physical change Electrochemical change Electrical change None of these Physical change Electrochemical change ANSWER DOWNLOAD EXAMIANS APP
Chemistry Glycol is added to aviation gasoline because it Prevents freezing of petrol Reduces consumption of petrol Reduces evaporation of petrol Increases efficiency of petrol Prevents freezing of petrol Reduces consumption of petrol Reduces evaporation of petrol Increases efficiency of petrol ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the toxic heavy metals is found in modern tannery industries ? Lead Chromium Zinc Nickel Lead Chromium Zinc Nickel ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Iron Magnesium Silicon Oxygen Iron Magnesium Silicon Oxygen ANSWER DOWNLOAD EXAMIANS APP
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