Chemistry Chemical formula of washing soda is NaHCO3 Na2CO3.10H2O Na2SO4.10H2O Ca(OH)2 NaHCO3 Na2CO3.10H2O Na2SO4.10H2O Ca(OH)2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron is extracted from Haematite Cinnabar Bauxite Dolomite Haematite Cinnabar Bauxite Dolomite ANSWER DOWNLOAD EXAMIANS APP
Chemistry In upper layer of atmosphere ozone is formed by Subjecting oxygen to high pressure The action of nitrogen on oxygen in atmosphere The action of ultraviolet rays on oxygen The combination of oxygen molecules Subjecting oxygen to high pressure The action of nitrogen on oxygen in atmosphere The action of ultraviolet rays on oxygen The combination of oxygen molecules ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of covering water pipes made of Iron with Zinc layer to prevent corrosion is called : Zinc plating Galvanization Alloy formation Vulcanization Zinc plating Galvanization Alloy formation Vulcanization ANSWER DOWNLOAD EXAMIANS APP
Chemistry The elements with atomic numbers 9, 17, 35, 53, 85 are all Noble gases Heavy metals Light metals Halogens Noble gases Heavy metals Light metals Halogens ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of these acids is not organic in origin? Oxalic acid Citric acid Lactic acid Sulphuric acid Oxalic acid Citric acid Lactic acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
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