Chemistry Periodic table contains how many groups 16 17 18 19 16 17 18 19 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of safety matches? Sodium Silicon Graphite Phosphorus Sodium Silicon Graphite Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following has pH value 7? HCl H2SO4 Sodium Carbonate Pure Water HCl H2SO4 Sodium Carbonate Pure Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry The iron ore magnetite consists of Fe2O3 Fe3OH4 3Fe2O3 .. 3H2O FeCO3 Fe2O3 Fe3OH4 3Fe2O3 .. 3H2O FeCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ferrous sulphate is used in water treatment as a/an Oxidizing agent Coagulant aid Adsorbent Reducing agent Oxidizing agent Coagulant aid Adsorbent Reducing agent ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium is produced by the electrolysis of Molten sodium carbonate Aqueous brine solution Its cyanide complex Molten sodium chloride Molten sodium carbonate Aqueous brine solution Its cyanide complex Molten sodium chloride ANSWER DOWNLOAD EXAMIANS APP
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