Chemistry The iron ore which contains 72% of iron is : Haematite Magnetite Siderite Limonite Haematite Magnetite Siderite Limonite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Magnetite is Fe2O3 Fe3O4 2Fe2O3. 3H2O FeCO3 Fe2O3 Fe3O4 2Fe2O3. 3H2O FeCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of removing calcium and magnesium from hard water is known as Filtration Water softening Sedimentation Flocculation Filtration Water softening Sedimentation Flocculation ANSWER DOWNLOAD EXAMIANS APP
Chemistry Freon' used as refrigerants is chemically Fluorinated aromatic compound Chlorinated hydrocarbon Fluorinated hydrocarbon Chlorofluoro hydrocarbon Fluorinated aromatic compound Chlorinated hydrocarbon Fluorinated hydrocarbon Chlorofluoro hydrocarbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The new strain of bacteria produced by biotechnology in alcohol industry is Escherichia coli Saccharomyces cerevisiae Bacillus subtilis Pseudomonas putida Escherichia coli Saccharomyces cerevisiae Bacillus subtilis Pseudomonas putida ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal used to recover copper from a solution of copper sulphate is Fe Hg Na Ag Fe Hg Na Ag ANSWER DOWNLOAD EXAMIANS APP
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