Stoichiometry pH value of an alkaline solution is < 7 Constant over a wide range > 7 7 < 7 Constant over a wide range > 7 7 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be __________ times. 43834 4 43832 √2 43834 4 43832 √2 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The chemical nature of an element is independent of Its atomic number The number of neutrons present in it None of these The number of protons or electrons present in it Its atomic number The number of neutrons present in it None of these The number of protons or electrons present in it ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. If, at a total pressure of one standard atm. exerted by the vapours of water and toluene, the mole fraction of water Xw in the vapour phase satisfies Xw = 0.5 Xw = 1.0 0.5 < Xw < 1.0 0 < Xw < 0.5 Xw = 0.5 Xw = 1.0 0.5 < Xw < 1.0 0 < Xw < 0.5 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The equilibria relations in a multicom-ponent and multiphase system can not be calculated with the help of the Experimental data Phase rule Theoretical equations Emperical equations Experimental data Phase rule Theoretical equations Emperical equations ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The value of Trouton's ratio (λb/Tb) for a number of substances is 21 (where, λb = molal that of vaporisation of a substance at its normal boiling point, KCal/kg. mole and Tb = normal boiling point, °K). The Kis-tyakowsky equation is used for calculation of Trouton's ratio of __________ liquids. Neither A nor B Both A & B Non-polar Polar Neither A nor B Both A & B Non-polar Polar ANSWER DOWNLOAD EXAMIANS APP
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