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 Which among the following elements is found in maximum percentage in the human body ? Nitrozen Carbon Hydrogen Oxyzen Nitrozen Carbon Hydrogen Oxyzen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 4 –3 to + 3 –3 to + 5 –3 to + 6 –3 to + 4 –3 to + 3 –3 to + 5 –3 to + 6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Gypsum is used for improvement of: Podsols Acidic soils Alkaline soils Saline soils Podsols Acidic soils Alkaline soils Saline soils ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lightest gas which is non-inflammable is Oxygen Hydrogen Helium Nitrogen Oxygen Hydrogen Helium Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Soap helps in better cleaning of clothes because Soap acts like catalyst It gives strength to solution It absorbs the dirt It reduces the surface tension of solution Soap acts like catalyst It gives strength to solution It absorbs the dirt It reduces the surface tension of solution ANSWER DOWNLOAD EXAMIANS APP
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