Chemistry What is the element that is in the highest percentage in the composition of the earth ? Magnesium Iron Silicon Oxygen Magnesium Iron Silicon Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used for dating very old objects of archaeological importance? Phosphorus-31 Carbon-14 Tritium Radium Phosphorus-31 Carbon-14 Tritium Radium ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Bhopal gas tragedy was caused by the gas Methyl Cyanide Methyl Iso Cyanide Methyl Iso Cyanate Methyl chloride Methyl Cyanide Methyl Iso Cyanide Methyl Iso Cyanate Methyl chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of naturally occurring elements 98 62 110 92 98 62 110 92 ANSWER DOWNLOAD EXAMIANS APP
Chemistry This group of alumino-silicate minerals is widely used in making electrical insulators Mica Chromite Bauxite Manganese Mica Chromite Bauxite Manganese ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aquaregia is a mixture of the following in the ratio 1 : 3 by volume Conc. HCl and conc. HNO3 Conc. HNO3 and conc. HCl Conc. HNO3 and conc. H2SO4 Dil. HCl and dil. HNO3 Conc. HCl and conc. HNO3 Conc. HNO3 and conc. HCl Conc. HNO3 and conc. H2SO4 Dil. HCl and dil. HNO3 ANSWER DOWNLOAD EXAMIANS APP
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