Chemistry Name two elements that find wide application in transistor industry Iridium and Germanium Silicon and Germanium Carbon and Platinum Tungsten and Platinum Iridium and Germanium Silicon and Germanium Carbon and Platinum Tungsten and Platinum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aquaregia is a mixture of the following in the ratio 1 : 3 by volume Conc. HCl and conc. HNO3 Conc. HNO3 and conc. H2SO4 Dil. HCl and dil. HNO3 Conc. HNO3 and conc. HCl Conc. HCl and conc. HNO3 Conc. HNO3 and conc. H2SO4 Dil. HCl and dil. HNO3 Conc. HNO3 and conc. HCl ANSWER DOWNLOAD EXAMIANS APP
Chemistry The apparatus used to test acidity of aqueous solution is PH meter Acidmeter Hygrometer Ammeter PH meter Acidmeter Hygrometer Ammeter ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following fuels causes minimum environmental pollution? Kerosene Coal Hydrogen Diesel Kerosene Coal Hydrogen Diesel ANSWER DOWNLOAD EXAMIANS APP
Chemistry In upper layer of atmosphere ozone is formed by Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere The combination of oxygen molecules Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere The combination of oxygen molecules ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of g-molecule of oxygen in 6.02 x 1024CO molecules is 0.5 gram of molecule 10 gram of molecule 5 gram of molecule 1 gram of molecule 0.5 gram of molecule 10 gram of molecule 5 gram of molecule 1 gram of molecule ANSWER DOWNLOAD EXAMIANS APP
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