Chemistry The purest form of water in nature is Lake water River water Sea water Rain water Lake water River water Sea water Rain water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid rain destroys vegetations because it contains Sulphuric acid Ozone Carbon monoxide Nitric acid Sulphuric acid Ozone Carbon monoxide Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Carbon dioxide Oxides of mineral elements Water Carbonates from soil Carbon dioxide Oxides of mineral elements Water Carbonates from soil ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound that has the least value for octane number is : 2,2-dimethyl hexane N-heptane Iso-octane 2-methyl heptane 2,2-dimethyl hexane N-heptane Iso-octane 2-methyl heptane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Hard water and soft water can be distinguished by using Dilute acid Detergent Liquid soap Ordinary soap Dilute acid Detergent Liquid soap Ordinary soap ANSWER DOWNLOAD EXAMIANS APP
Chemistry The highest volume of gases in lower atmosphere is comprised of Hydrogen Nitrogen Carbon dioxide Oxygen Hydrogen Nitrogen Carbon dioxide Oxygen ANSWER DOWNLOAD EXAMIANS APP
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