Stoichiometry Mcqs for Chemical


Q.  The vapour pressure of a solution (made by dissolving a solute in a solvent) is ____________ that of the pure solvent?

a. Less than
b. More than
c. Equal to
d. Either more or less; depends on the solvent


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  If the absolute temperature of an ideal gas is tripled and simultaneously the pressure is reduced to one third; then the volume of gas will _______________?
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MCQs:  Refluxing of part of the distillate in a fractionating column is a ‘recycling operation’, aimed primarily at_______________?
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MCQs:  The rate of material _____________ is zero in case of a steady state system?
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MCQs:  Pick out the wrong unit conversion of heat transfer co-efficient?
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MCQs:  Viscosity of atmospheric air may be about _____________ centipoise?
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MCQs:  Kopp’s rule is concerned with the calculation of__________________?
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MCQs:  Validity of the relationship, inputs = outputs, holds good for the system at steady state________________?
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MCQs:  At standard conditions, N2 + 2O2 ⇌ 2NO2; ΔG° = 100 kJ/mole NO + ½O2 ⇌ 2NO2; ΔG° = -35 kJ/mole The standard free energy of formation of NO in kJ/mole is___________________?
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MCQs:  A bypass stream in a chemical process is useful, because it___________________?
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MCQs:  Which of the following expressions defines the Baume gravity scale for liquids heavier than water ?
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MCQs:  The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol XM satisfies________________?
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MCQs:  The effect of pressure on the heat capacity of the gases ______________ is negligible?
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MCQs:  The osmotic pressure of a solution increases, if its _____________ is decreased?
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MCQs:  A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the ____________________?
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MCQs:  Diffusion is that property by virtue of which a perfume bottle when opened up in a room, makes the whole room fragrant with its smell. If a perfume ‘X’ diffuses twice as fast as another perfume ‘Y’; what is the molecular weight of ‘Y’, if the vapor density of gas ‘X’ is 2? Molecular weight of gas ‘X’ is to be assumed to be 2 ?
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MCQs:  The number of atoms of oxygen present in 11.2 litres of ozone (O3) at N.T.P. are__________________?
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MCQs:  N2 content in a urea sample was found to be only 42%. What is the actual urea content of the sample? (Molecular weight of urea = 60) ?
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MCQs:  Which of the following ratios defines the recycle ratio in a chemical process ?
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MCQs:  Cp equals Cv at________________?
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MCQs:  On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes_________________?
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