Chemistry Which of the following is a secondary pollutant ? CO PAN NO SO2 CO PAN NO SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet radiation striking the earth is due to the depletion of Oxygen Carbon monoxide Ozone Carbon dioxide Oxygen Carbon monoxide Ozone Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Many people died in London in 1952 as result of air pollution producing Fog Sleet Mist Smog Fog Sleet Mist Smog ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most reactive among the halogens is Bromine Iodine Chlorine Fluorine Bromine Iodine Chlorine Fluorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one element has the lowest electronegativity value Radium Fluorine Chlorine Francium Radium Fluorine Chlorine Francium ANSWER DOWNLOAD EXAMIANS APP