Chemistry Iron is prevented from rusting by coating with zinc. This process is called as Galvanisation Sublimation Corrosion Reduction Galvanisation Sublimation Corrosion Reduction ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone depletion in the atmosphere is mainly caused by Sulphur dioxide Chlorofluorocarbon Nitrogen dioxide Hydrogen sulphide Sulphur dioxide Chlorofluorocarbon Nitrogen dioxide Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal that is usually extracted from sea water is K Na Mg Ca K Na Mg Ca ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Tritium Radium Phosphorus-31 Carbon-14 Tritium Radium Phosphorus-31 Carbon-14 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The amount of chlorine available in water after disinfection is called as Combined available chlorine Free chlorine Residual chlorine Free available chlorine Combined available chlorine Free chlorine Residual chlorine Free available chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry Table salt gets moist during rainy season because Sodium chloride contains hygroscopic impurities like magnesium chloride Sodium chloride contains some quantity of sodium iodide Sodium chloride is deliquescent Sodium chloride is hygroscopic Sodium chloride contains hygroscopic impurities like magnesium chloride Sodium chloride contains some quantity of sodium iodide Sodium chloride is deliquescent Sodium chloride is hygroscopic ANSWER DOWNLOAD EXAMIANS APP
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