Chemistry Which one of the following elements is an example of noble gas ? Helium Hydrogen Chlorine Nitrogen Helium Hydrogen Chlorine Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a greenhouse gas ? Helium Carbon dioxide Sulphur dioxide Nitrogen Helium Carbon dioxide Sulphur dioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3 4 2 5 zero 4 2 5 zero ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Calcium, Phosphorous and Potassium Nitrogen, Potassium and Phosphorous Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium Calcium, Phosphorous and Potassium Nitrogen, Potassium and Phosphorous Phosphorous, Sodium and Nitrogen Sulphur, Phosphorous and Sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical that is used to ripen mangoes is Calcium chloride Calcium carbonate Calcium carbide Calcium sulphide Calcium chloride Calcium carbonate Calcium carbide Calcium sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The material used in the manufacture of lead pencil is Carbon Graphite Mica Lead Carbon Graphite Mica Lead ANSWER DOWNLOAD EXAMIANS APP
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