Chemistry What is the element that is in the highest percentage in the composition of the earth ? Oxygen Iron Magnesium Silicon Oxygen Iron Magnesium Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The trans-uranium elements are the chemical elements with atomic numbers greater than 89 86 92 96 89 86 92 96 ANSWER DOWNLOAD EXAMIANS APP
Chemistry This group of alumino-silicate minerals is widely used in making electrical insulators Chromite Manganese Bauxite Mica Chromite Manganese Bauxite Mica ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron and manganese present as pollutants in water cannot be removed by________ Chlorination Lime soda process or manganese zeolite process Oxidation followed by settling and filtration Ion exchange process Chlorination Lime soda process or manganese zeolite process Oxidation followed by settling and filtration Ion exchange process ANSWER DOWNLOAD EXAMIANS APP
Chemistry Phosphorus is kept in water because Its ignition temperature is very high Its critical temperature is high Its ignition temperature is very low Its critical temperature is low Its ignition temperature is very high Its critical temperature is high Its ignition temperature is very low Its critical temperature is low ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used as preservative for foodstuff ? Picric acid Sodium Benzoate Sodium Chloride Glycerine Picric acid Sodium Benzoate Sodium Chloride Glycerine ANSWER DOWNLOAD EXAMIANS APP
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