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