Chemistry Which among the following is found in chlorophyll ? A l3+ Fe2+ Ca2+ Mg2+ A l3+ Fe2+ Ca2+ Mg2+ ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pollutant from motor car exhaust that causes mental disease is SO2 Hg NO2 Lead SO2 Hg NO2 Lead ANSWER DOWNLOAD EXAMIANS APP
Chemistry In addition to hydrogen, the other abundant element present on Sun’s surface is Argon Neon Oxygen Helium Argon Neon Oxygen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Refrigerant 'FREON' is Hydrofluosilicic Acid Difluoro Dichloro Methane Fluorspar and Felspar Calcium Tetra Fluoride Hydrofluosilicic Acid Difluoro Dichloro Methane Fluorspar and Felspar Calcium Tetra Fluoride ANSWER DOWNLOAD EXAMIANS APP
Chemistry A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be Copper Zinc Silver Aluminium Copper Zinc Silver Aluminium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? Zinc and carbon Lead peroxide and lead Nickel and cadmium Iron and cadmium Zinc and carbon Lead peroxide and lead Nickel and cadmium Iron and cadmium ANSWER DOWNLOAD EXAMIANS APP
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