Chemistry Nitrogen forms a variety of compounds in all oxidation states ranging from –3 to + 5 –3 to + 6 –3 to + 4 –3 to + 3 –3 to + 5 –3 to + 6 –3 to + 4 –3 to + 3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of an atom consists of electrons and neutrons electrons and protons protons and neutrons All of these electrons and neutrons electrons and protons protons and neutrons All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vulcanized rubber contains sulphur 10-15% 0.02 3-5% 7-9% 10-15% 0.02 3-5% 7-9% ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver gets corroded due to ________ in air. Carbon dioxide Hydrogen Sulphide Oxygen Nitrogen Carbon dioxide Hydrogen Sulphide Oxygen Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound that has the least value for octane number is : Iso-octane 2-methyl heptane N-heptane 2,2-dimethyl hexane Iso-octane 2-methyl heptane N-heptane 2,2-dimethyl hexane ANSWER DOWNLOAD EXAMIANS APP
Chemistry The three elements most needed in common fertilisers are : Nitrogen, Potassium and Phosphorous Phosphorous, Sodium and Nitrogen Calcium, Phosphorous and Potassium Sulphur, Phosphorous and Sodium Nitrogen, Potassium and Phosphorous Phosphorous, Sodium and Nitrogen Calcium, Phosphorous and Potassium Sulphur, Phosphorous and Sodium ANSWER DOWNLOAD EXAMIANS APP
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