Chemistry Which of the following is a man-made source of air pollution ? All of these Bacterial action in soil and swamp areas Automobile exhaust Forest fire All of these Bacterial action in soil and swamp areas Automobile exhaust Forest fire ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most commonly used bleaching agent is carbon dioxide sodium chlorine alcohol chlorine carbon dioxide sodium chlorine alcohol chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the number of moles of CO2 which contains 16 g of oxygen? 0.2 mole 0.5 mole 0.4 mole 0.25 mole 0.2 mole 0.5 mole 0.4 mole 0.25 mole ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Sodium peroxide Barium peroxide Hydrogen peroxide Ozone Sodium peroxide Barium peroxide Hydrogen peroxide Ozone ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gobar gas contains mainly : Propylene Methane Acetylene Ethylene Propylene Methane Acetylene Ethylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is nitrogen carbon hydrogen oxygen nitrogen carbon hydrogen oxygen ANSWER DOWNLOAD EXAMIANS APP
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