Chemistry What is the mass percentage of carbon in carbon dioxide (CO2) 0.273 0.158 0.323 0.201 0.273 0.158 0.323 0.201 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following has pH value 7? HCl H2SO4 Pure Water Sodium Carbonate HCl H2SO4 Pure Water Sodium Carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemistry When cathode rays strike a target of high atomic weight, they give rise to X-rays ? and ? rays ?-rays Positive rays X-rays ? and ? rays ?-rays Positive rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry Air is said to be saturated when : It blows over the barren land Its pressure is minimum It contains maximum content of water vapour Its thickness is maximum It blows over the barren land Its pressure is minimum It contains maximum content of water vapour Its thickness is maximum ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has Stable half filled 2p sub level High nuclear charge High bond dissociation energy Smaller atomic radius Stable half filled 2p sub level High nuclear charge High bond dissociation energy Smaller atomic radius ANSWER DOWNLOAD EXAMIANS APP
Chemistry The major constituent of air is carbon dioxide oxygen hydrogen nitrogen carbon dioxide oxygen hydrogen nitrogen ANSWER DOWNLOAD EXAMIANS APP
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