Chemistry Conduction band electrons have more mobility than holes because they Have negative charge Experience collision less frequently Are lighter Need less energy to move them Have negative charge Experience collision less frequently Are lighter Need less energy to move them ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound used in pricklyheat powder to prevent excessive sweating is Carbonic acid Boric acid Sulphuric acid Phosphoric acid Carbonic acid Boric acid Sulphuric acid Phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is colourless ? Phosphorus Sulphur Oxygen Chlorine Phosphorus Sulphur Oxygen Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry The monomer of polythene is None of these ethylene ethyl alcohol vinyl chloride None of these ethylene ethyl alcohol vinyl chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone depletion in the stratosphere is mainly caused by NO2 NO SO2 Chlorogluorocarbons NO2 NO SO2 Chlorogluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following kinds of spectroscopy can provide information on the energy difference between the initial and final states rather the energy levels involved in the transition UV photoelectron spectroscopy Infrared absorption spectroscopy Rotational spectroscopy UV absorption spectroscopy UV photoelectron spectroscopy Infrared absorption spectroscopy Rotational spectroscopy UV absorption spectroscopy ANSWER DOWNLOAD EXAMIANS APP
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