Chemistry The most abundant constituent of atmospheric air is : Oxygen Nitrogen Carbon Hydrogen Oxygen Nitrogen Carbon Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of safety matches? Silicon Graphite Sodium Phosphorus Silicon Graphite Sodium Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Milk tastes sour when it is left in open for some time. This happens due to the formation of Lactic acid Carbonic acid Acetic acid Citric acid Lactic acid Carbonic acid Acetic acid Citric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fuels causes minimum environmental pollution? Kerosene Diesel Hydrogen Coal Kerosene Diesel Hydrogen Coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal that is used as a catalyst in the hydrogenation of oils is Pt Pb Cu Ni Pt Pb Cu Ni ANSWER DOWNLOAD EXAMIANS APP
Chemistry Metal are good conductors, because The molecules in them collide very freely They contain reflecting surface The molecules in them are very close to each other They contain free electrons The molecules in them collide very freely They contain reflecting surface The molecules in them are very close to each other They contain free electrons ANSWER DOWNLOAD EXAMIANS APP