Chemistry The method of concentrating the ore which makes use of the difference in density between ore and impurities is called liquation levigation magnetic separation leaching liquation levigation magnetic separation leaching ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to Its ability to absorb all other colours except yellow The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour The low ionisation energy of sodium Its ability to absorb all other colours except yellow The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum sublimation of sodium to emit yellow colour The low ionisation energy of sodium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following has a maximum tendency to form M3 ion ? As N P Bi As N P Bi ANSWER DOWNLOAD EXAMIANS APP
Chemistry A balloon filled with helium rises in air because Air exerts an upward force on the balloon The balloon is weightless Helium pushes down on the air below the balloon Helium is less dense than air Air exerts an upward force on the balloon The balloon is weightless Helium pushes down on the air below the balloon Helium is less dense than air ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lustre of the metals is because of High polish High density, due to closed packing of atoms Reflection of light due to the presence of free electrons Absorption of light due to the presence of cavities High polish High density, due to closed packing of atoms Reflection of light due to the presence of free electrons Absorption of light due to the presence of cavities ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iodine value is used to estimate Alkali content in oil Unsaturation in oil Hydroxyl groups in oil Carboxylic groups in oil Alkali content in oil Unsaturation in oil Hydroxyl groups in oil Carboxylic groups in oil ANSWER DOWNLOAD EXAMIANS APP
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