Chemistry Hydrogen is not found in atmosphere because It is the lightest gas It is absorbed by plants It immediately combines with oxygen to form water It is highly inflammable It is the lightest gas It is absorbed by plants It immediately combines with oxygen to form water It is highly inflammable ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called Eutrophication Green house effect Smog None of these Eutrophication Green house effect Smog None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry If there is one million Mg2+ ions in MgCl2, how many chloride ions are there? One million Ten million Half a million Two million One million Ten million Half a million Two million ANSWER DOWNLOAD EXAMIANS APP
Chemistry When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is Hydrogen Oxygen Carbon dioxide All of them Hydrogen Oxygen Carbon dioxide All of them ANSWER DOWNLOAD EXAMIANS APP
Chemistry The wire of flash bulb is made of: Silver Barium Copper Magnesium Silver Barium Copper Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following pollutants is main product of automobile exhaust ? NO Hydrocarbons CO CO2 NO Hydrocarbons CO CO2 ANSWER DOWNLOAD EXAMIANS APP
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