Chemistry The purest form of water in nature is River water Lake water Rain water Sea water River water Lake water Rain water Sea water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The method of concentrating the ore which makes use of the difference in density between ore and impurities is called liquation leaching levigation magnetic separation liquation leaching levigation magnetic separation ANSWER DOWNLOAD EXAMIANS APP
Chemistry What are the number of moles of CO2 which contains 16 g of oxygen? 0.25 mole 0.5 mole 0.4 mole 0.2 mole 0.25 mole 0.5 mole 0.4 mole 0.2 mole ANSWER DOWNLOAD EXAMIANS APP
Chemistry The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of periodic table of contents atomic structure discovery of elements metallurgy periodic table of contents atomic structure discovery of elements metallurgy ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ gives hardness to stainless steel. Zinc Lead Tin Carbon Zinc Lead Tin Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The product, 9-nitroanthracene is obtained from anthracene by the action of Nitric acid and ethyl alcohol Nitric acid and acetic acid Nitric acid in excess Nitric acid and acetic anhydride Nitric acid and ethyl alcohol Nitric acid and acetic acid Nitric acid in excess Nitric acid and acetic anhydride ANSWER DOWNLOAD EXAMIANS APP
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