Chemistry The lustre of the metals is because of Absorption of light due to the presence of cavities High density, due to closed packing of atoms High polish Reflection of light due to the presence of free electrons Absorption of light due to the presence of cavities High density, due to closed packing of atoms High polish Reflection of light due to the presence of free electrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The BOD values of water indicate the Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical oxidation Amount of oxygen used for biochemical reduction Amount of organic debris Amount of ozone used for biochemical oxidation Amount of oxygen used for biochemical oxidation Amount of oxygen used for biochemical reduction Amount of organic debris ANSWER DOWNLOAD EXAMIANS APP
Chemistry Where does the oxygen that keeps us alive come from? Carbonates absorbed from soil Water Carbon dioxide Oxides of minerals Carbonates absorbed from soil Water Carbon dioxide Oxides of minerals ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is extensively used for sterilizing water ? Borax powder Soda powder Bleaching powder Alum Borax powder Soda powder Bleaching powder Alum ANSWER DOWNLOAD EXAMIANS APP
Chemistry 'Bhopal gas tragedy' 1984 is related to which gas Aluminium Phosphide Methyl bromide Methyl isocyanate Carbon dioxide Aluminium Phosphide Methyl bromide Methyl isocyanate Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry White phosphorus is generally kept under Kerosene oil Alcohol Glycerine Water Kerosene oil Alcohol Glycerine Water ANSWER DOWNLOAD EXAMIANS APP
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