Chemistry Hydrogen is not found in atmosphere because It is the lightest gas It immediately combines with oxygen to form water It is highly inflammable It is absorbed by plants It is the lightest gas It immediately combines with oxygen to form water It is highly inflammable It is absorbed by plants ANSWER DOWNLOAD EXAMIANS APP
Chemistry Number of6.023 × 1020 atoms present in one mole of a gas at STP is '6.023 × 10–23 6.023 × 1023 '6.023 × 10–20 6.023 × 1020 '6.023 × 10–23 6.023 × 1023 '6.023 × 10–20 6.023 × 1020 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one among the following is not a mixture? Graphite Glass Brass Steel Graphite Glass Brass Steel ANSWER DOWNLOAD EXAMIANS APP
Chemistry Phosphorus is kept in water because Its ignition temperature is very low Its critical temperature is high Its ignition temperature is very high Its critical temperature is low Its ignition temperature is very low Its critical temperature is high Its ignition temperature is very high Its critical temperature is low ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ? Hardness Alkalinity Acidity Eutrophication Hardness Alkalinity Acidity Eutrophication ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore magnetite consists of 3Fe2O3 .. 3H2O Fe3OH4 Fe2O3 FeCO3 3Fe2O3 .. 3H2O Fe3OH4 Fe2O3 FeCO3 ANSWER DOWNLOAD EXAMIANS APP
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