Chemistry Which one is a naturally occuring noble gas Potassium Sodium Argon Boron Potassium Sodium Argon Boron ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the most commonly used substance in fluorescent tubes? Sodium vapour and neon Mercury vapour and argon Mercury oxide and neon Sodium oxide and argon Sodium vapour and neon Mercury vapour and argon Mercury oxide and neon Sodium oxide and argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be 1 : 16 : 2 1 : 1 : 1 2 : 16 : 2 2 : 16 : 1 1 : 16 : 2 1 : 1 : 1 2 : 16 : 2 2 : 16 : 1 ANSWER DOWNLOAD EXAMIANS APP
Chemistry In upper layer of atmosphere ozone is formed by 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 Subjecting oxygen to high pressure The action of ultraviolet rays on oxygen The action of nitrogen on oxygen in atmosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry The percentage of Nitrogen in Air is 0.94 0.03 85.02 78.03 0.94 0.03 85.02 78.03 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a nucleon? Positron Proton Electron Neutron Positron Proton Electron Neutron ANSWER DOWNLOAD EXAMIANS APP
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