Chemistry The element used for making solar cells is Silicon Sodium Magnesium Calcium Silicon Sodium Magnesium Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry 24 carat of diamond is equal to 91% gold 95% mg 200 mg 200 g 91% gold 95% mg 200 mg 200 g ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which type of radiations are absorbed by the upper layer of the atmosphere? Radio-waves Infrared Visible Ultraviolet Radio-waves Infrared Visible Ultraviolet ANSWER DOWNLOAD EXAMIANS APP
Chemistry Of the following, which one pollutes the air of a big city ? Cadmium Copper Chromium Lead Cadmium Copper Chromium Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry What happens when a chemical bond is formed ? Energy in always released More energy is released than is absorbed Energy is neither released nor absorbed Energy is always absorbed Energy in always released More energy is released than is absorbed Energy is neither released nor absorbed Energy is always absorbed ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atmospheric gas that is mainly responsible for Green House effect : Oxygen Carbondioxide Nitrogen Ozone Oxygen Carbondioxide Nitrogen Ozone ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS