Chemistry Which of the following is the main nitrogenous waste in humans ? Ammonium Nitrate Ammonia Urea Uric Acid Ammonium Nitrate Ammonia Urea Uric Acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heating of a ore below its melting point in the absence of air is known as Roasting Calcination Smelting Refining Roasting Calcination Smelting Refining ANSWER DOWNLOAD EXAMIANS APP
Chemistry The antiparticle of an electron is Beta particles Alpha particles Positron Proton Beta particles Alpha particles Positron Proton ANSWER DOWNLOAD EXAMIANS APP
Chemistry Diamond is harder than graphite because of : Tetrahedral structure of diamond None of these Difference in layers of atoms Difference of crystalline structures Tetrahedral structure of diamond None of these Difference in layers of atoms Difference of crystalline structures ANSWER DOWNLOAD EXAMIANS APP
Chemistry Soap is prepared by boiling caustic soda with Alcohol Glycerine Fats Kerosene oil Alcohol Glycerine Fats Kerosene oil ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sodium vapour lamps glow with yellow colour. This is due to The low ionisation energy of sodium sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum Its ability to absorb all other colours except yellow The low ionisation energy of sodium sublimation of sodium to emit yellow colour The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum Its ability to absorb all other colours except yellow ANSWER DOWNLOAD EXAMIANS APP
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