Chemistry In upper layer of atmosphere ozone is formed by The action of ultraviolet rays on oxygen Subjecting oxygen to high pressure The combination of oxygen molecules The action of nitrogen on oxygen in atmosphere The action of ultraviolet rays on oxygen Subjecting oxygen to high pressure The combination of oxygen molecules The action of nitrogen on oxygen in atmosphere ANSWER DOWNLOAD EXAMIANS APP
Chemistry This group of alumino-silicate minerals is widely used in making electrical insulators Mica Chromite Manganese Bauxite Mica Chromite Manganese Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following molecules has a bond order of 2.5 HCL CO F2 NO HCL CO F2 NO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . X–rays Infra-red (IR) Ultraviolet rays (UV) Gamma rays X–rays Infra-red (IR) Ultraviolet rays (UV) Gamma rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry A subshell with l=2 can take up 3 electron 5 electron 10 electron 8 electron 3 electron 5 electron 10 electron 8 electron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The increasing abundance of green house gases in atmosphere has led to the following effect except Global warming Carbon dioxide ferilization effect Oxygen fertilization effect Depletion of ozone layer in the stratosphere Global warming Carbon dioxide ferilization effect Oxygen fertilization effect Depletion of ozone layer in the stratosphere ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS