Stoichiometry Validity of the relationship, inputs = outputs, holds good for the system at steady state With chemical reaction None of these Without chemical reaction Without chemical reaction & losses With chemical reaction None of these Without chemical reaction Without chemical reaction & losses ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If pH value of an acidic solution is decreased from 5 to 2, then the increase in its hydrogen ion concentration is __________ times. 10000 10 1000 100 10000 10 1000 100 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent? Nature of solute Temperature Pressure Nature of solvent Nature of solute Temperature Pressure Nature of solvent ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg.? 0.1 0.4 0.6 0.2 0.1 0.4 0.6 0.2 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The depression in freezing point of a solution is Neither A nor B Inversely proportional to the mass of solvent Both A & B Directly proportional to the mole of solute Neither A nor B Inversely proportional to the mass of solvent Both A & B Directly proportional to the mole of solute 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 0 < Xw < 0.5 Xw = 1.0 Xw = 0.5 0.5 < Xw < 1.0 0 < Xw < 0.5 Xw = 1.0 Xw = 0.5 0.5 < Xw < 1.0 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS