Chemistry What is the element that is in the highest percentage in the composition of the earth ? Oxygen Magnesium Silicon Iron Oxygen Magnesium Silicon Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the naturally occuring heaviest element Mercury Protactinium Thorium Uranium Mercury Protactinium Thorium Uranium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Limestone is a raw material used by which industry? Petrochemicals Cement Fertilizers Aluminium Petrochemicals Cement Fertilizers Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The purest form of water in nature is Lake water River water Rain water Sea water Lake water River water Rain water Sea water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Liquid Nitrogen boils at 97 Kelvin 77 kelvin 54 kelvin 82 Kelvin 97 Kelvin 77 kelvin 54 kelvin 82 Kelvin ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of replenishable energy source is– Lignite Coal Biomass Petroleum Lignite Coal Biomass Petroleum ANSWER DOWNLOAD EXAMIANS APP
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