Chemistry The first metal used by a man was Copper Bronze Silver Brass Copper Bronze Silver Brass ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant rare gas in the atmosphere is Xe Ne Ar He Xe Ne Ar He ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element has the lowest electronegativity value Francium Chlorine Fluorine Radium Francium Chlorine Fluorine Radium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Thermal electricity is generated by using which of these ? None of these Coal, Natural Gas and Petroleum Coal only Coal and Natural Gas only None of these Coal, Natural Gas and Petroleum Coal only Coal and Natural Gas only ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following pollutants is main product of automobile exhaust ? NO CO Hydrocarbons CO2 NO CO Hydrocarbons CO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is used as a catalyst in the production of high octane fuels? HCl H2SO4 HF HNO3 HCl H2SO4 HF HNO3 ANSWER DOWNLOAD EXAMIANS APP
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